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Muzzle 610 Roller Speargun - Sigalsub
The Sigalsub 610 Roller Speargun Muzzle is a high-performance component for band spearguns for spearfishing, designed to convert a classic band speargun into an efficient roller system. Thanks to its roller-block technology, it delivers greater shooting power, longer range, and reduced recoil with the same barrel length.
Roller Speargun technology: more power, less recoil
The roller system uses a longer band stretch than a traditional setup, generating significantly higher speed and kinetic energy. The result is a more stable shot, with drastically reduced recoil and a more precise sight line even with high-tension bands. Ideal for challenging fish and long-range shots.
Technical features
- High-sliding roller blocks for maximum band travel smoothness
- Stainless steel stopper shaped to allow the shaft-locking nylon line to pass through
- Central body made of glass fiber-reinforced plastic material for high mechanical strength
- Compatible with most 28 mm cylindrical barrels with an external diameter available on the market
- Included: 26 mm adapter (compatible with Seac, Pathos, Salvimar, Cressi, etc.) with a double O-ring system for watertight sealing — also available in a 25.4 mm version (Seatec, Omer, etc.)
- Side front line passage, usable on either the right or left side for maximum flexibility
- Band capacity up to 16.0 mm in diameter
- Included: stainless steel pin for securing the bands and a stainless steel hook for making the loading aid
- Available in military green and black versions
Compatibility and versatility
The Sigalsub 610 Roller Speargun Muzzle is designed to fit a wide range of commercial spearguns with tubular barrels, thanks to its interchangeable dual-adapter system. It lets you upgrade your existing band speargun to a roller system without having to purchase a new speargun, with simple, straightforward installation.
Italian build quality
Manufactured by Sigalsub, an Italian company specialized in designing high-performance spearfishing equipment, the 610 Muzzle is built for reliability, durability, and precision even during the most demanding spearfishing sessions.
Muzzle 610 with Bearing Pulleys - Sigalsub
The Sigalsub Muzzle 610 with bearing pulleys is the benchmark roller solution for anyone looking to convert or upgrade their tube speargun with a high-performance system. Part of the renowned Sigalsub Roller Speargun Line, this muzzle is designed to ensure maximum line travel, greater shot power, and long-lasting durability, even in the most demanding spearfishing conditions.
High-Smoothness Bearing Technology
The standout feature of this muzzle is its pulley system with double radial bearings made from a non-metallic technical material, with 316 stainless steel balls. The bearings are equipped with an outer cover that prevents sand, seaweed, and debris from entering between the balls, ensuring consistently perfect, friction-free rolling. The dynamic load rating of over 45 kg guarantees reliability and strength even with high-tension bands.
Construction and Materials
- Central body made from glass-fiber-reinforced plastic material for high mechanical strength
- Stainless steel stopper for maximum strength and resistance to marine corrosion
- Double integrated watertight O-ring seal for perfect barrel sealing
- Pulleys with double radial bearings and 316 stainless steel balls with dynamic load >45 kg
- Available in black and military green
Compatibility and Installation
The Muzzle 610 is designed for direct installation on any commercial female tubular-section barrel. It fits barrels with an internal diameter of 26 mm (compatible with Seac, Pathos, Salvi, Cressi, and others) and is also available with a 25.4 mm adapter for Seatec, Omer, and similar barrels. The fastening system is quick and simple using a self-tapping screw.
- Compatible with barrels with Ø 26 mm internal diameter (standard)
- Ø 25.4 mm adapter available separately
- Bilateral side line passage: can be used on either the right or left side
- Fastening with included self-tapping screw
- Compatible with bands up to 16 mm in diameter
Complete Kit Included
The muzzle comes complete with everything needed for installation and immediate setup on your speargun:
- Complete roller speargun muzzle with bearing pulleys
- Two burnished stainless steel hooks for band pre-tensioning
- Burnished line guide
- Mounting hardware
- Instruction sheet with step-by-step installation instructions
Advantages of the Roller Speargun System
The roller system allows you to use the full working length of the barrel for band propulsion, unlike a classic traditional speargun, which uses only part of it. The result is greater shot power for the same speargun length, or the option to use a shorter barrel while maintaining the same ballistic effectiveness. The Muzzle 610 is the ideal choice for anyone looking for a reliable Made in Italy component designed specifically for the needs of professional and recreational spearfishing.
Muzzle 610 with Bearing Pulleys - Sigalsub
The Sigalsub Muzzle 610 with bearing pulleys is the benchmark Roller Speargun solution for anyone looking to convert or upgrade their tube speargun with a high-performance system. Part of the renowned Sigalsub Roller Speargun Line, this muzzle is designed to ensure maximum line glide, increased shooting power, and long-lasting durability, even in the most demanding spearfishing conditions.
High-Glide Bearing Technology
The standout feature of this muzzle is its pulley system with dual radial bearings made from non-metallic technical material, with 316 stainless steel balls. The bearings feature an external cover that prevents sand, seaweed, and debris from entering between the balls, ensuring consistently perfect, friction-free rolling. The dynamic load rating of over 45 kg guarantees reliability and strength even with high-tension bands.
Construction and Materials
- Central body made of glass fiber-reinforced plastic material for high mechanical strength
- Stainless steel stopper for maximum robustness and resistance to marine corrosion
- Integrated dual watertight O-Ring for perfect barrel sealing
- Pulleys with dual radial bearings and 316 stainless steel balls with dynamic load >45 kg
- Available in black and military green
Compatibility and Installation
The Muzzle 610 is designed for direct fitting onto any commercial female tubular-section barrel. It fits barrels with an internal diameter of 26 mm (compatible with Seac, Pathos, Salvi, Cressi, and others) and is also available with a 25.4 mm adapter for Seatec, Omer, and similar barrels. The fastening system is quick and simple using a self-tapping screw.
- Compatible with barrels with Ø 26 mm internal diameter (standard)
- Ø 25.4 mm adapter available separately
- Bilateral side line routing: can be used on either the right or left side
- Fastening with included self-tapping screw
- Compatible with bands up to 16 mm in diameter
Complete Kit Included
The muzzle comes complete with everything needed for installation and immediate setup on your speargun:
- Complete roller muzzle with bearing pulleys
- Two burnished stainless steel hooks for band pretensioning
- Burnished line guide
- Mounting hardware
- Instruction sheet with step-by-step assembly instructions
Benefits of the Roller Speargun System
The roller system allows you to use the full working length of the barrel for band propulsion, unlike a classic traditional speargun, which uses only part of it. The result is greater shooting power for the same speargun length, or the ability to use a shorter barrel while maintaining the same ballistic performance. The Muzzle 610 is the ideal choice for anyone looking for a reliable Made in Italy component designed specifically for the needs of professional and recreational spearfishing.
Wishbone XL with Bushings - SigalSub
The SigalSub XL Wishbone with bushings is an articulated wishbone for spearguns, made entirely from AISI 316 stainless steel using 4 mm rod stock. Strong, precise, and designed to deliver maximum ballistic performance, it is the ideal choice for anyone using double- or triple-band spearguns.
Construction and Materials
Each wishbone is made from 4 mm AISI 316 Stainless Steel rod stock, hand-bent and shaped to form the engagement hook. A second bend on the arms brings the bands perfectly back in line after engagement on notches or pins. The terminal surfaces remain rounded, significantly reducing the risk of abrasion in the event of accidental release. The version with bushings includes dedicated threaded Derlin bushings (16 pitch), allowing direct use with bands with bushings.
Ballistic Performance
Thanks to its XL dimensions — 65 mm length, 51.3 mm width, and hole center distance of approximately 47 mm — this wishbone keeps the bands perfectly spaced and parallel during loading. This prevents the rubber bands from overlapping, eliminating unnecessary friction and energy loss during the shot, for a consistently clean and precise sight line.
Recommended Use
- Ideal on double- or triple-band spearguns, paired with a narrower wishbone (wire or classic style)
- Also compatible with single-band spearguns, making it easier to engage and slide the hands out
- Pairing with wishbones of different widths to keep the bands perfectly spaced and parallel
- Compatible with shafts with notches or pins
Technical Specifications
- Material: Stainless Steel AISI 316
- Rod diameter: 4 mm
- Dimensions: 65 mm (length) × 51.3 mm (width)
- Hole center distance: approx. 47 mm
- Weight: 16.7 g
- Bushings included: in Derlin, 16 pitch thread, Ø 16 mm
- Compatibility: bands with bushings and tied-in bands
Stark Muzzle for Tube Speargun - Sigalsub
The Stark muzzle by Sigalsub is a versatile solution designed for tube spearguns with an internal diameter of Ø 26 mm. Thanks to its modular architecture, it adapts to both roller and inverter systems and classic speargun configuration, making it one of the most versatile accessories in the Sigalsub spearfishing line.
Compact Design and Robust Construction
Despite its extremely compact size and low weight, the Stark muzzle does not compromise on strength. The stainless steel stop system ensures excellent solidity even under the elastic bands’ traction loads, delivering consistent performance over time.
Roller Speargun System and Speargun Configuration
- Compatible with all invert/roller systems for spearfishing spearguns
- Easily convertible into a classic speargun muzzle by removing the pin and pulleys
- High-smoothness pulley mounting system for optimal power transfer
- Stainless steel stopper for maximum durability and resistance to marine corrosion
Line and Reel Management
- Bilateral line retainer: supports on both the right and left side to suit any handle configuration
- Dedicated line guide eyelet for the reel line
- Optimized to ensure smooth running and reduced friction during retrieval
Watertight Seal and Installation
- Double O-Ring for a perfect watertight seal of the speargun barrel
- Quick fastening with a self-tapping screw
- Compatible with barrels with an internal diameter of Ø 26 mm
Included Accessories
- Pair of plastic knot-saver discs included, designed to protect the stainless steel stopper from direct impacts from the wishbone knot
Wishbone Wire with Bushings - Sigalsub
The Sigalsub Wishbone Wire with bushings is one of the highest-performing ballistic solutions available for spearfishing. Developed from the evolution of the "articulated wishbone" designed by Giorgio Dapiran, this articulated wishbone combines a refined technical design with top-quality materials, built for those who accept no compromises in the water.
Harmonic Stainless Steel Wire Wishbone
The attachment system uses a harmonic stainless steel wire with a breaking load of 1800 N/mm², offering the same performance characteristics as the Sandvik steel used in classic Tahitian shafts. Compared to previous systems, this material provides superior elastic return and 20% greater mechanical strength, ensuring maximum reliability on every shot.
Handcrafted Manufacturing and Quality Control
- Each wishbone is made and hand-beveled at the end section
- Individually checked with a 0.3 mm probe to verify closure and hold
- Wishbone bent outward and left open: interchangeable in case of breakage
- Design that eliminates the risk of hand lacerations if the band slips
- Greatly reduces the possibility of accidental line snagging during the shot
Dimensions and Hole Spacing
- Length: 49 mm
- Width: 35 mm
- Hole spacing: approximately 27 mm
- After the first loading, the wishbone closes: stable spacing of approximately 20–22 mm for all subsequent uses
Compatibility and Use
The with bushings version is designed for use with Ø 16 mm threaded bushing bands, ensuring a secure, precise, and stable installation on the speargun. Compatible with shafts featuring both notches and pins.
Why Choose the Wishbone Wire
Wire wishbones naturally offer the best ballistic solution among the different types of wishbones available. The open, interchangeable design of the wishbone simplifies maintenance and replacement, even in the water, without having to untie knots or disassemble the band. An ideal choice for demanding spearfishers who want the very best from their gear.
Wishbone Jewel ML with Bushings - SigalSub
The SigalSub Jewel ML Wishbone with bushings is a jointed stainless steel wishbone designed to be mounted on threaded bands with ø 16 mm bushings, compatible with all major spearfishing spearguns. Created to meet a real need among experienced spearfishers, this wishbone was developed to ensure a perfect, precise, and reliable catch in every condition of use.
Design and Construction
The Jewel ML stands out for its meticulous attention to construction details. The half-moon section — the part that engages the shaft notches — is precision-machined to ensure optimal contact and a secure catch. The angle is specifically designed not to be too pronounced, in order to minimize contact with the angled part of the shaft and optimize power transfer.
- High-quality stainless steel construction
- Arms approximately 35 mm long (including the brass ball)
- Fixed half-moon section (non-removable) measuring 30 mm
- Pin width: approximately 30 mm
- Compatible with threaded bands with ø 16 mm bushings
Performance and Compatibility
The Jewel ML Wishbone with bushings is compatible with all freediving spearfishing spearguns, including more demanding models such as the Mr. Carbon by C4. Thanks to its carefully engineered geometry, the bands’ power is transferred to the shaft efficiently and directly, without loss. The bands remain properly aligned and spaced, eliminating friction and interference during the shot.
- Compatible with all major spearguns for spearfishing
- Precise and stable engagement on the shaft notches
- No friction between the bands during the shot
- Power transferred to the shaft with no energy loss
- Version with bushings for ø 16 mm threaded bands
A High-Quality Made in Italy Product
SigalSub is an Italian brand recognized in the spearfishing world for the quality of its workmanship and its focus on the real needs of spearfishers. The Jewel ML Wishbone with bushings is one of the most appreciated accessories in the range, synonymous with reliability, precision, and long-lasting durability.
Wrist Hook - Sigalsub
The Sigalsub wrist hook is an essential accessory for anyone using band spearguns with a roller, pulley-assisted, or inverter system. Designed to make loading pre-tensioned bands easier and safer, this tool is fundamental for every spearfishing session, especially with spearguns featuring high propulsive load.
Composition and Materials
- Corrosion-resistant stainless steel hook, built to withstand use in marine environments
- Wrist bracelet in black rubber, for secure and comfortable anchoring during loading
- High-strength dyneema-coated internal cord
- Compact, lightweight construction, easy to stow with your freediving gear
How It Works
The wrist hook is worn on the wrist using the rubber bracelet. When loading a roller or pulley-assisted band speargun, the stainless steel hook is attached to the dyneema wishbone that connects the bands. By pulling with your arm, you bring the band into pre-load, extending the grip point and allowing you to comfortably reach the wishbones with your other hand for positioning on the loading notches.
Benefits
- Makes loading roller bands significantly easier, even under high tension
- Reduces the physical effort required when loading the speargun
- Allows you to load in stages, increasing control and safety
- Ideal for large-diameter bands and high-power systems
- Quality Made in Italy accessory, manufactured by Sigalsub
Compatibility
The Sigalsub wrist hook is compatible with all band spearguns equipped with roller, pulley-assisted, or inverter systems that use dyneema wishbones to connect the bands. It pairs perfectly with the entire range of Sigalsub spearguns and accessories.
Line Guide for Wooden Speargun - Sigalsub
The Sigalsub line guide is a technical stainless steel accessory designed specifically for wooden spearguns. Made to ensure a clean, functional, and reliable setup, it mounts easily underneath the speargun muzzle using the two stainless steel screws included in the package.
Technical Features
- Material: stainless steel — resistant to corrosion, saltwater, and wear
- Mounting: installs under the muzzle of the wooden speargun using the 2 supplied stainless steel screws
- Large opening: allows the reel line to pass through smoothly without friction
- Optimized angle: oriented in relation to the speargun’s longitudinal plane to properly accommodate the nylon wraps between the muzzle and the line release
- Compatible with most wooden spearguns
Function and Benefits
The line guide is an essential component in a speargun setup: it guides the shooting line or reel line in a neat and precise way, preventing tangles, clutter, and loss of performance during the shot. Thanks to its specific angle, the nylon wraps are correctly routed between the muzzle and the line release, improving smooth line travel and reducing the risk of snagging during shaft launch.
Installation
- Position the line guide underneath the muzzle of the wooden speargun
- Secure it with the two included stainless steel screws
- Pass the reel line or shooting line through the opening
- Make the nylon wraps between the muzzle and the line release, following the angle of the component
Who It’s For
An ideal accessory for anyone using wooden spearguns who wants a precise, tidy, and high-performance line setup. Suitable both for experienced spearfishers looking to optimize their gear and for those building or customizing their own speargun.
Pre-Tensioning Hook - Sigalsub
The Sigalsub pre-tensioning hook is an essential component for anyone looking to convert or optimize their speargun into a roller or reduced-load configuration. Made from burnished stainless steel, it ensures maximum corrosion resistance in marine environments and long-lasting durability.
Function and Compatibility
This flat hook attaches to the underside of the barrel of an arbalete speargun and allows pre-tensioned bands to be anchored. It is compatible with wood, aluminum, and composite barrels, with a mounting system that can be screwed directly into the barrel or installed using bushings. By installing multiple hooks in sequence along the barrel, you can vary the pre-tensioning point and the position of the bands, quickly managing the speargun’s power according to your spearfishing needs.
Technical Features
- Material: burnished stainless steel, resistant to marine corrosion
- Mounting: screws directly into the barrel or installs using bushings
- Hardware included: 2 stainless steel screws supplied
- Compatible with roller, inverter, and reduced-load systems
- Allows textile and metal wishbones to be anchored for band pre-tensioning
- Can be positioned anywhere on the barrel to adjust tension and power
- Made in Italy by Sigalsub
Installation Instructions
- Position the hook at the desired point on the speargun barrel.
- If necessary, first insert the bushing into the barrel before drilling.
- Drill the barrel, making sure the hole is in the correct position and away from any seals.
- Secure the hook using the two stainless steel screws supplied.
- Hook the pre-tensioned bands onto the hook to complete the roller or reduced-load system.
System Advantages
By distributing an adequate number of hooks along the barrel, you can split the band loading process into stages, making the top loading phase easier and reducing overall effort. This solution lets you quickly customize speargun performance without modifying other components, making it ideal for spearfishers who want to adapt the power of their arbalete speargun to different hunting situations.
Kit 2 Pre-Tensioning Hooks + Line Guide - Sigalsub
The Sigalsub Kit 2 Pre-Tensioning Hooks + Line Guide is the complete solution for converting and optimizing roller and inverted roller spearguns. Made from high-quality stainless steel, the components in this kit ensure corrosion resistance, reliability in the water, and long-lasting durability.
What’s included in the kit
- 2 flat pre-tensioning hooks in stainless steel, for anchoring pre-tensioned bands to the speargun barrel
- 1 line guide in stainless steel, a pre-drilled plate with a loop for proper line management and guidance on roller spearguns
- Stainless steel mounting screws included in the package
Function and technical advantages
The pre-tensioning hooks attach to the underside of the speargun barrel and allow pre-tensioned bands to be hooked in place, both on roller and inverted roller systems. By positioning multiple hooks in sequence along the barrel, you can:
- Adjust the level of band pre-tension
- Split and distribute the lower loading load
- Make upper band loading easier
- Quickly manage the speargun power according to fishing conditions
The line guide ensures an optimal, friction-free path for the line, preventing snags during the shot and maintaining the accuracy of the propulsion system.
Compatibility
The kit is compatible with wood, aluminum, and carbon railguns equipped with roller or inverter systems. The hooks fasten directly to the barrel using the supplied stainless steel screws, with no need for complex structural modifications.
Materials
- Hooks and line guide in stainless steel — maximum resistance to saltwater corrosion
- Mounting screws included in stainless steel
- Precision machining for a safe and stable installation
Installation notes
- Position the hook at the desired point on the speargun barrel.
- Drill the barrel at the selected mounting point.
- Fasten the hook using the supplied stainless steel screw.
- Repeat the procedure for the second hook in the optimal position.
- Install the line guide in the correct position to guide the line without friction.
Side Guards for Roller Speargun - Sigalsub
The Sigalsub side guards for Roller Speargun are original spare parts designed specifically for the roller muzzles in the Sigalsub line. These components perform an essential function in the speargun’s roller system: they protect and correctly guide the band during loading and shooting, ensuring precise and reliable muzzle operation.
Compatibility and Use
The side guards are replacement accessories dedicated to the Sigalsub Roller Speargun line, designed for those who want to keep their roller muzzles in perfect working order or for those assembling or customizing their speargun with original components from the Italian brand. Sigalsub is a high-precision artisan company specializing in the production of components for spearfishing, and every spare part is made with the same construction care as the main products.
Main Features
- Original Spare Part Sigalsub for roller muzzles
- Side guide and protection function for the roller band
- Integral part of the roller system for spearguns
- High-precision Italian artisanal production
- Compatible with the roller muzzles of the Sigalsub line
The Sigalsub Roller Speargun System
The Sigalsub roller system is recognized in the spearfishing sector for its build quality and the variety of available solutions: muzzles with plastic wheels, with a special-material axle, and with ball bearings. The side guards are a key component for maintaining the efficiency and precision of this system over time.
Aluminum Stopper Roller Speargun Line - SigalSub
The SigalSub aluminum stoppers are original spare components designed for the roller muzzles of the Sigalsub Roller Speargun Line. Sold as a pair, these stoppers perform a key mechanical function: stopping the wishbone knot of the bands during the shot, ensuring precision, safety, and reliability every time you head out to sea.
Material and Construction
Made from Anticorodal aluminum, an alloy with high mechanical strength and corrosion resistance, these stoppers receive a hard anodizing treatment that prevents the alloy from oxidizing, even with prolonged use in the marine environment. The result is a durable, lightweight component that maintains performance over time.
Compatibility
The SigalSub aluminum stoppers are official components of the Sigalsub Roller Speargun Line and integrate with the roller muzzles and roller kits produced by the Italian company. They are the ideal Spare Part for replacing worn stoppers on muzzles equipped with the aluminum version.
Why Choose Original SigalSub Stoppers
- Anticorodal aluminum with hard anodizing treatment for maximum resistance to marine corrosion
- Sold as a pair: a complete set for immediate replacement on both sides
- Original SigalSub component, manufactured in-house by the Italian company to ensure quality and perfect tolerances
- Precise and reliable band stop function in the roller system
- Low weight thanks to aluminum, without compromising mechanical strength
- Essential Spare Part for maintaining the optimal performance of the roller muzzle over time
Roller Pulleys - SigalSub
The SigalSub roller pulleys are replacement and upgrade components specifically designed for roller system band spearguns. Sold as a pair, they are an integral part of the SigalSub Roller Speargun Line and stand out for their internal roller, which reduces band friction during loading and shooting, ensuring smoother operation compared to standard pulleys.
Roller Speargun Technology: Why Pulleys Make the Difference
In roller spearguns for spearfishing, the muzzle pulleys redirect the bands underneath the barrel as well, increasing the effective propulsion stroke. Pulley quality directly affects shaft exit speed, shooting power, range, and loading smoothness. SigalSub roller pulleys optimize this energy transfer, minimizing load loss and ensuring consistent performance dive after dive.
Technical Features
- Type: roller pulleys with internal rotating core
- Pulley outer diameter: mm 26
- Pulley groove diameter: mm 20
- Packaging: pair (2 pulleys)
- Construction: corrosion-resistant materials, suitable for saltwater use
- Compatibility: muzzles and roller kits from the SigalSub Roller Speargun Line
Performance and Benefits
- Reduced friction: the internal roller allows the bands to slide smoothly, reducing energy loss compared to standard pulleys
- Greater power and speed: optimized energy transfer results in smoother, more powerful, and more accurate shots
- Corrosion resistance: robust construction suitable for prolonged use in marine environments
- Direct upgrade: ideal replacement part for upgrading or replacing existing pulleys on SigalSub roller muzzles
- Reliability: consistent performance under pressure, even during deep-water spearfishing sessions
Who They Are For
These pulleys are the reference replacement part for anyone who owns a SigalSub roller band speargun and wants to restore or improve the performance of their equipment. They are also the ideal choice for those who want to build or customize a roller muzzle to their specifications, pairing them with axle pins, stoppers, and kits available in the SigalSub Roller Speargun Line.
O-Ring for Nemesis Muzzles and Handles - Sigalsub
The Sigalsub O-Ring for the Nemesis line is the essential original Spare Part for ensuring a perfect watertight seal at the connections between the barrel, muzzle, and handle of Nemesis series spearguns. With dimensions of Ø 26 mm and 3 mm thickness, it is designed to fit precisely onto the male inserts of the Nemesis handle and muzzle, ensuring a reliable hydraulic seal on every dive.
Compatibility
Original Spare Part by Sigalsub specifically for muzzles and handles in the Nemesis line, compatible with barrels with a 26 mm internal diameter. Suitable for both handles and single- and double-band muzzles in the Nemesis series, including standard, Pro, and Carbon PRO versions.
Technical Specifications
- Diameter: Ø 26 mm
- Thickness: 3 mm
- Compatibility: Sigalsub Nemesis line muzzles and handles
- Compatible barrel diameter: 26 mm (internal diameter)
- Package: 2 pieces
Function and Importance of the Spare Part
In Nemesis series spearguns, the watertight seal of the connections is provided by O-Rings positioned on the handle and muzzle inserts. These components ensure that no water ingress compromises the internal mechanical parts. Periodic replacement of the O-Rings is one of the essential Maintenance tasks for keeping the speargun in perfectly efficient and safe condition.
Recommended Maintenance
- Replace the O-Rings whenever you notice signs of wear, deformation, or loss of elasticity
- Always lubricate the O-Rings with specific silicone grease before assembly
- Check the integrity of the O-Rings before every spearfishing session
- Store spare parts away from heat sources and direct UV rays to preserve their elastomeric properties
Nemesis Closed Muzzle - Sigalsub
The Sigalsub closed muzzle for Nemesis spearguns is the dedicated component for hole hunting and short, powerful shots. Designed and manufactured entirely in Italy by Sigalsub, this muzzle transforms the Nemesis speargun into the ideal configuration for tight environments, crevices, and close-range hunting with maximum efficiency.
Technical Features
- Closed Muzzle with threaded holes for parallel in-line bands
- Screw-in Bands (with bushings) for a compact, powerful setup
- Made from 30% fiberglass-reinforced nylon, the same high-strength material used for the Nemesis handle
- Compatible with threaded shafts for mounting a prong or spear tip
- Compact design, among the smallest in the spearfishing speargun category
- Quick assembly via transverse locking pin, a proven system used throughout the Nemesis line
- Watertight seal ensured by dual O-rings on the male insert
- Compatible with Nemesis aluminum barrels (6082 alloy, 28 mm outer diameter with integrated shaft guide)
Why Choose the Closed Muzzle Configuration
The closed muzzle is the optimal technical solution for hole hunting: the in-line bands with bushings deliver concentrated, direct thrust, ideal for short-range shots where immediate power is required. The closed geometry protects the bands from impacts against walls and rocks while maneuvering in confined spaces, increasing component life and operational safety.
Nemesis Versatility and Customization
One of the strengths of the entire Nemesis system is its modularity: by replacing only the muzzle, you can convert your speargun from an open circular-band configuration to a closed configuration — or vice versa — without modifying the handle, barrel, or trigger mechanism. This makes the Nemesis closed muzzle a versatile investment, allowing the same speargun to adapt to different spearfishing techniques.
Italian Sigalsub Production
Sigalsub is an Italian artisan company that combines precision machining with manual finishing and assembly, with quality control on every single component. Sigalsub’s expertise in trigger mechanisms and speargun components is recognized internationally, which is why many professional spearfishers choose Sigalsub components for building custom spearguns as well.
Santoprene Plug Kit for Ø 26 mm Barrels
This kit includes two Santoprene plugs designed to ensure a secure and reliable seal for barrels with a 26 mm diameter. The innovative elastomeric material offers a combination of elasticity and mechanical strength, ensuring excellent sealing performance and long-lasting durability even in underwater environments.
The use of Santoprene provides high elasticity and adaptability to sealing surfaces, maintaining a consistent seal with no risk of seepage or leaks. These plugs are ideal both as replacements and for new installations in the management and maintenance of spearfishing and freediving equipment.
Nemesis Fixing Pins - Sigalsub
The original Sigalsub fixing pins are essential spare parts for the proper assembly and maintenance of the Nemesis speargun. Made from nylon, they ensure secure and precise locking of the grip sleeve onto the handle, providing operational stability during use at sea.
Function and Compatibility
The nylon fixing pin is the component that locks the grip sleeve onto the Nemesis handle. The assembly and disassembly system is extremely simple and quick, making replacement easy for any spearfisher, with no special tools required. Compatible with the entire Nemesis handle line.
- Original Sigalsub Spare Part, manufactured entirely in Italy
- Compatible with Nemesis handles mounted on aluminum and carbon fiber barrels
- Suitable for all models in the line: Nemesis Classico, Pro, Plus, HT and Carbon
- Available in two color options: Black and Military Green
Material and Features
Made from nylon, the pin is lightweight, durable, and perfectly sized to secure the Santoprene grip sleeve on the Nemesis handle. The simple construction of this component ensures quick assembly and disassembly of the grip sleeve, a common operation for customization or replacement.
- Material: nylon, lightweight and durable
- Quick, tool-free grip sleeve assembly and disassembly
- Color matched to the Nemesis handle finish
- 100% Made in Italy production
When to Replace the Fixing Pin
It is recommended to inspect and replace the fixing pin in case of:
- Visible wear or deformation of the pin
- Instability or play in the grip sleeve on the handle
- Routine Maintenance after seasons of intensive use
- Replacement or color change of the grip sleeve
Technical Specifications
- Type: grip sleeve through fixing pin
- Material: nylon
- Use: securing the Nemesis grip sleeve/handle
- Available colors: Black / Military Green
- Production: 100% Made in Italy
Nemesis Retaining Pins - Sigalsub
The original Sigalsub retaining pins are essential spare parts for the proper assembly and maintenance of the Nemesis speargun. Made of nylon, they ensure reliable and precise locking of the grip insert on the handle, providing operational stability during use at sea.
Function and Compatibility
The nylon retaining pin is the component that locks the grip insert onto the Nemesis handle. The assembly and disassembly system is extremely simple and quick, making replacement easy for any spearfisher, with no need for special tools. Compatible with the entire Nemesis handle line.
- Original Spare Part Sigalsub, entirely made in Italy
- Compatible with Nemesis handles mounted on aluminum and carbon fiber barrels
- Suitable for all models in the line: Nemesis Classico, Pro, Plus, HT and Carbon
- Available in two color options: Black and Military Green
Material and Features
Made of nylon, the pin is lightweight, durable, and perfectly sized for securing the Santoprene grip insert on the Nemesis handle. The simple construction of this component allows quick assembly and disassembly of the grip insert, a frequent operation when customizing or replacing it.
- Material: nylon, lightweight and durable
- Quick, tool-free grip insert assembly and disassembly
- Color matched to the Nemesis handle finish
- 100% Made in Italy production
When to Replace the Retaining Pin
It is recommended to check and replace the retaining pin in case of:
- Visible wear or deformation of the pin
- Instability or play of the grip insert on the handle
- Routine Maintenance after seasons of intensive use
- Replacement or color change of the grip insert
Technical Specifications
- Type: through-pin for grip insert retention
- Material: nylon
- Use: securing the Nemesis grip insert/handle
- Available colors: Black / Military Green
- Production: 100% Made in Italy
Axle for Line Roller Speargun Pulleys 6mm - Sigalsub
The 6mm Sigalsub pulley axle is the original Spare Part for the Sigalsub Roller Speargun Line, designed to ensure proper pulley operation in roller muzzles for spearfishing spearguns. Made from stainless steel, it provides maximum corrosion resistance in marine environments and long-lasting durability, even with intensive use.
Compatibility and available versions
The axle is available in two lengths to fit different Sigalsub roller muzzle configurations:
- Diameter: 6 mm
- Short version length: 57 mm
- Long version length: 75 mm
- Material: Stainless steel (Inox)
- Compatible with Sigalsub Roller Speargun Line pulleys (plain, roller, and glass ball bearing versions)
Use and application
This component is essential for the correct assembly and maintenance of Sigalsub roller muzzles. Roller muzzles are designed to be mounted on barrels from different manufacturers and are available in versions with burnished stainless steel stoppers, anodized anticorodal aluminum, and carbon. The 6mm axle ensures proper alignment and smooth pulley rotation, a key factor in the shooting performance of the roller system.
Sigalsub quality
Sigalsub is an Italian artisan company that combines precision mechanical machining with manual quality control on every component. Careful material selection, especially of stainless steels, is one of the brand’s priorities to ensure reliability and high performance in all underwater use conditions.
- Original Spare Part Sigalsub
- Stainless steel construction resistant to marine corrosion
- Ideal for maintenance and restoration of roller muzzles
- Precision mechanical machining
Carbon Tube - Sigalsub
The Sigalsub Carbon Tube is the original replacement barrel for 100% carbon fiber spearguns, designed and manufactured in Italy to ensure maximum performance in spearfishing. Compatible with the Nemesis speargun range and with the main Sigalsub components, this tube is the ideal choice for anyone looking to build a high-performance custom gun or replace the original barrel while maintaining the brand’s quality standards.
Construction and Materials
The barrel is made from high-modulus carbon fiber with a wall thickness of 2.0 mm, ensuring the perfect balance of light weight, structural rigidity, and pressure resistance in the marine environment. The outer surface is not screen-printed, leaving full freedom for custom personalization.
- Material: 100% high-modulus carbon fiber
- Wall thickness: 2.0 mm
- Outer diameter: Ø 30 mm
- Inner diameter: Ø 26 mm
- Outer surface: not screen-printed
Integrated Shaft Guide
The shaft guide is integrated and is structurally part of the barrel itself: it is not glued on or applied afterward. This construction solution significantly increases the barrel’s rigidity, especially in the vertical direction — the one most stressed during the shot — ensuring precise and consistent trajectories over time.
Configuration and Accessories
The tube is supplied without watertight plugs and without mounting holes for muzzle and handle, allowing it to adapt to a wide variety of rigging configurations. The black nylon fastening pins Ø 4.0 x 30 mm are included as standard and are also available separately as a replacement part.
- Watertight plugs NOT included (available separately)
- Mounting holes NOT present: the tube is blank and ready for custom rigging
- Black nylon fastening pins Ø 4.0 x 30 mm supplied as standard
Available Lengths
The Sigalsub Carbon Tube is available in a wide range of sizes, from 60 cm to 120 cm, to suit any speargun configuration, from a short gun for hole hunting to long models for distance shots.
Compatibility
The 30 mm outer diameter and 26 mm inner diameter make it compatible with the vast majority of Sigalsub handles, muzzles, and components, as well as many aftermarket components available in the spearfishing market.
Adapter for Cylindrical Barrels with 26 mm Internal Diameter
This adapter is designed to allow the installation of roller muzzles or other components on cylindrical barrels with an internal diameter of 26 millimeters. It is specifically made to ensure a stable and precise interface between the barrel and accessories for spearfishing and freediving.
Compatibility with tubes with a 26 mm internal diameter makes this adapter an essential component for assembling and customizing spearguns, ensuring a reliable and secure fit.
Salvimar Fish Stringer with Nylon Cable and Belt Spike Holder
The Salvimar fish stringer is an essential accessory for spearfishing, designed for safe, practical transport of your catch during underwater activity. The nylon cable construction provides high mechanical strength, ensuring durability even in the marine environment.
The attachment system with integrated spike holder allows you to secure the fish stringer directly to the belt, freeing the spearfisher’s hands and making movement underwater easier. This design ensures comfort and safety during underwater progression, minimizing the risk of loss or entanglement.
Technical Features
- Nylon cable resistant to wear and saltwater
- Sturdy spike holder for secure attachment to the belt
- Compact, lightweight design that does not restrict mobility
- Available in 5 colors: Black, Red, White, Military Green, and Acid Green
The Salvimar fish stringer is designed to integrate perfectly with freediving and spearfishing equipment, optimizing catch management with a functional and durable accessory.
Measuring and Charging Kit for Pneumatic Spearguns
This measuring and charging kit is specifically designed for pressure management in pneumatic spearguns used in spearfishing and freediving. It includes essential components for accurate and safe control of your speargun’s internal pressure.
Kit Components
- Pressure gauge for precisely monitoring reservoir pressure.
- Overpressure valve that ensures safety by limiting excess pressure.
- Hose equipped with a shut-off valve, useful for easy control during charging.
- Yoke adapter compatible with a DIN-type valve, for a stable and reliable connection.
Compatibility and Adaptability
The supplied fitting is specifically designed to fit all Predathor spearguns. It can also be easily replaced with other Salvimar adapters, allowing the kit to be used on different types of pneumatic spearguns for spearfishing, improving versatility and ease of use.
Durable Nylon Salvimar Fish Bag
The Salvimar fish bag is designed for spearfishers who need durability and practicality during dives. Made from durable Nylon, it ensures long-lasting performance even in marine environments with continuous exposure to saltwater.
The net features a shoulder strap with a quick-release buckle, making it easy to carry and allowing fast opening and closing for better management of your catch in the water.
Available sizes:
- Small: 38 x 44 cm, ideal for dives with smaller catches or as an auxiliary net.
- Big: 60 x 44 cm, designed for larger catches, providing space and capacity without compromising handling.
Predathor Charging Valve Removal Tool
The Predathor charging valve removal tool is designed to ensure simple, safe maintenance of pneumatic spearguns for spearfishing. This tool allows precise, practical operation when removing the charging valve, improving efficiency during technical service procedures.
Made from durable materials, it ensures long-lasting, reliable use and makes maintenance procedures on pneumatic spearguns easier.
Salvimar Ares Carbon – Speargun for Spearfishing and Freediving
Salvimar Ares Carbon is a speargun designed specifically for spearfishing, featuring a K300 carbon fiber barrel with a polygonal elliptical cross-section. This distinctive geometry, with strategically positioned angles, gives the barrel high structural rigidity, improving stability and shot accuracy while freediving.
The shaft sliding system is integrated with an open rail shaft guide that extends from the handle, increasing overall strength and efficiency in power transfer. The symmetrical handle, made from nylon loaded with 30% fiberglass, ensures excellent comfort and a secure grip, while the self-centering MIM stainless steel release mechanism guarantees reliability and long-term durability.
To make aiming easier, an acid-green nylon segment is applied to the trigger housing, visible in all light conditions, optimizing line-of-sight visibility.
Technical features of the muzzle
- Muzzle with two separate holes to reduce band friction, increasing shot power
- Step on the tip to support the shaft flopper without using an O-ring, improving smoothness
Available configurations
- Four lengths: 85 cm, 95 cm, 105 cm and 115 cm, suited to different swing preferences and hunting environments
- BOLT shaft calibrated by diameter and length according to the version
- Supplied with twin 14 mm bands for adequate thrust power
- Micro Vertical reel for the 85 and 95 cm versions
- Vertical 70 reel for the 105 and 115 cm versions
The Salvimar Ares Carbon is a speargun built with selected materials and technical details designed to ensure precise, reliable, and smooth performance during freediving and spearfishing.
Salvimatr Anodized Aluminum Muzzle for Predathor Spearguns
The Salvimatr muzzle for Predathor spearguns is made from anodized aluminum, ensuring high mechanical strength and corrosion protection in marine environments. This muzzle is supplied complete, including all essential components for immediate and secure installation.
- Wishbone
- Sealing gasket
- Muzzle body
- Shock-absorbing bushing
The integrated design ensures proper hydraulic sealing and shock absorption during tracking, helping maintain the speargun’s accuracy and reliability.
The muzzle is specifically designed to be compatible with Predathor 13 barrel spearguns, ensuring perfect interchangeability and installation without modifications.
Medium Stainless Steel Spear Tip - Salvimar
The Salvimar Medium Stainless Steel Spear Tip is a high-quality original replacement part for spearguns, made from high-strength stainless steel. Designed to deliver reliable, consistent performance on every trip at sea, it is the ideal choice for the spearfisher who does not compromise on secure fish retention.
Double Flopper for Superior Anti-Release Holding Power
The opposing double flopper system is the key strength of this spear tip. Once it penetrates the target, the two floppers open simultaneously, distributing the holding force and drastically reducing the risk of the fish tearing off or escaping. A particularly effective solution for hard-fighting fish or species with more delicate flesh.
Material and Strength
- Stainless steel of high quality, designed to resist saltwater corrosion
- Robust construction to ensure durability and consistent performance over time
- Sharp Tip for a clean trajectory and excellent penetration
- Balanced design for stability and handling during the shot
Technical Specifications
- Material: Stainless steel
- Floppers: 2 short opposing floppers
- Overall length: 7 cm
- Thread: Standard M7 pitch, compatible with most threaded shafts
- Product code: AC031
Compatibility and Use
Thanks to the standard thread (M7 pitch), this spear tip is universally compatible with the vast majority of threaded shafts for band-powered and pneumatic spearguns on the market. Installation is quick and easy, with no adapters required. It is particularly suitable for hole hunting and ambush hunting in the Mediterranean, effective on seabream, brown meagre, conger eels, and other species that take shelter in rocky crevices.
Maintenance
After each use at sea, rinse the spear tip thoroughly with plenty of fresh water to remove any salt residue and preserve the properties of the stainless steel over time.
Vecta 2 Rob Allen Stainless Steel Release Mechanism
The Vecta 2 release mechanism, manufactured by Rob Allen, is made entirely from stainless steel to ensure high corrosion resistance and long-lasting durability in the marine environment.
This replacement component is designed to ensure reliable, precise operation during freedive spearfishing and underwater activities, allowing safe release of the line or reel.
Main features:
- Material: high-strength stainless steel, suitable for saltwater environments
- Compatibility: specifically for the Vecta 2 Rob Allen mechanism
- Functionality: quick and secure release mechanism
Spare Part Line Release Rob Allen
The replacement line release Rob Allen is made from durable plastic, specifically designed for use in freediving and spearfishing.
This component allows quick release of the line, ensuring practicality and safety during breath-hold dives.
The choice of plastic materials ensures light weight and corrosion resistance in marine environments, preserving long-term reliability during underwater use.
Synthetic Marine Vegetation Tuft for Freediving Camouflage
This tuft of artificial marine vegetation is made from lightweight synthetic material, designed to faithfully reproduce the appearance of underwater vegetation. Designed for spearfishing and Freediving, it contributes to the 3D camouflage essential for reducing underwater visibility during spearfishing activity.
Technical Features
- Material: synthetic, durable, and lightweight, faithfully reproduces marine vegetation
- Color: yellow and white, ideal for blending into typical underwater environments
- Secure attachment via female Velcro base sewn with strong stitching
- Male Velcro included for stable anchoring on any support, which can be sewn or glued
Benefits and Use
The modular system allows you to customize the position of the tufts on your gear, adapting them to different spearfishing conditions. Full interchangeability allows the tufts to be moved even during the same hunting session, offering maximum flexibility and adaptability to the environment.
Thanks to this modularity and the quality of the synthetic material, the tuft ensures highly effective camouflage, improving visual concealment and optimizing underwater movement without disturbing the seabed or marine life.
Applications
- Customization of wetsuits and spearfishing gear
- Camouflage during sea dives with natural vegetation
- Compatibility with Velcro-equipped supports for quick and secure applications
Spearfishing
Spearfishing is a discipline that requires specific equipment, designed to perform in a demanding environment where visibility, temperature, depth, and seabed characteristics determine every technical choice. There is no universal setup: every component of a Spearfishing kit meets precise needs that vary according to the technique used, the hunting environment, and the spearfisher’s level of experience.
Deep Blue brings together in this section the complete kit for Spearfishing, from rigging - spearguns, shafts, bands, wishbones, reels, lines - to technical neoprene apparel - wetsuits, socks, gloves. A range that covers the needs of beginners in shallow water as well as those practicing advanced bluewater hunting or hole hunting techniques at significant depths.
Product types
Spearguns
Spearguns are mainly divided into two categories: band-powered (railguns/arbaletes) and pneumatic. Arbaletes use latex bands to launch the shaft; they are quiet, intuitive, and easy to maintain. Pneumatic spearguns use compressed air, offer a power regulator, and may have a standard or vacuum muzzle (quieter and higher-performing, but with more complex maintenance). One variation of band-powered spearguns is the roller speargun, which uses pulleys to optimize band pull.
Shafts and bands
Shafts for arbalete and pneumatic spearguns are available in different diameters, materials, and configurations. The choice of diameter is related to the power of the speargun and the type of prey. Configurations include shafts with shark fins, notches, threaded ends, for prongs and slip tips, with single or double floppers (opposed or offset).
Bands for arbaletes are made of natural latex, available in various diameters, either with inserts or by the meter. Compounds range from reactive to progressive: today, intermediate compounds are preferred, combining power and accuracy.
Reels and lines
The reel is an essential accessory for medium-to-deep spearfishing and for hunting large pelagic fish. Mounted on the speargun, it allows you to manage the retrieval of fast, large prey without losing contact. Lines are available in nylon and technical materials (Dyneema) in different lengths and breaking strengths.
Neoprene wetsuits
Spearfishing wetsuits are generally two-piece suits, with a jacket featuring an integrated hood and high-waisted pants, made of open-cell neoprene, with a protective outer lining and inner neoprene in direct contact with the skin. This construction ensures maximum fit and minimizes water exchange. Available thicknesses range from 3 mm for warm waters up to 8 mm for winter months and cold water. Many models feature camouflage colors - camo patterns that reproduce rocky bottoms, seaweed, or Posidonia - with the aim of reducing visual contrast with the seabed and helping the approach to prey.
Fins
Spearfishing fins feature long blades that provide efficient propulsion with reduced energy consumption, a critical factor for maximizing breath-hold times. Blade materials range from technical plastic to fiberglass and carbon fiber. Carbon blades transmit kicking energy more directly and responsively than softer materials. Plastic or fiberglass blades offer greater flexibility and adapt to different finning styles. The choice of stiffness - soft, medium, or hard - depends on muscular strength, kick frequency, and operating depth.
Masks
Spearfishing masks are characterized by a reduced internal volume compared to conventional diving masks. Low volume requires less air to equalize at depth, reducing the use of lung reserves. Lenses are generally made of tempered glass. Many models feature dark lenses or anti-reflective treatments that improve visibility in strong surface glare.
Knives
Spearfishing knives are active safety tools, used to free yourself from lines and fishing line, dispatch fish, and fillet the catch. They differ by mounting position - belt, arm, or calf - and by blade type: straight, serrated, or double-edged. Blades are made of marine-grade stainless steel. They come with sheaths featuring belt or sock attachment systems and blades with two edges, one straight and one serrated.
Dive Floats, belts, and weights
The dive float is mandatory safety equipment: it signals the spearfisher’s presence at the surface to passing boats. Available floats vary in size, buoyancy, and the ability to accommodate a float board with line and reel. Belts and weight harnesses are used to distribute lead ballast along the body. Proper weight management is essential to reach neutral buoyancy at operating depths without excessive effort on descent and without risk on ascent.
Dive Lights, computers, and GPS
Underwater lights are essential for hole hunting, where artificial lighting makes it possible to locate prey inside seabed cavities. Spearfishing computers record depth, dive time, and surface interval, providing useful data for managing the session in the water. GPS units and fishfinders complete the setup for those who spearfish from a boat, allowing fishing spots to be georeferenced and the water column to be analyzed.
Practical use
Hole hunting involves actively searching for prey - groupers, moray eels, scorpionfish, lobsters - inside cavities in rocky bottoms. It requires short or medium spearguns (50-75 cm), underwater lights to illuminate holes, low-volume masks, and camo wetsuits that blend in with the seabed.
Ambush or aspetto hunting consists of waiting motionless on the bottom, or letting the body drop downward with minimal movement, until prey passes by. Sea bream, European seabass, dentex, and leerfish are the species typically targeted with this technique. The required equipment includes camo wetsuits, long fins to quickly reach depth, and medium or long spearguns with high penetration power.
Bluewater hunting - technically referred to as bluewater hunting - consists of hunting large pelagic fish in open water, far from the coast and the bottom, often at considerable depths. Target species include amberjack, tuna, mahi-mahi, and swordfish. This technique requires long spearguns with high-power roller systems, reels with long line capacity, large floats, wetsuits suited to ocean water temperatures, and a high level of physical and technical training.
Conclusion
Equipment for Spearfishing is the result of a balance between technically interdependent components. A speargun suited to the technique practiced, a wetsuit with the correct thickness for seasonal conditions, fins matched to the spearfisher’s physical characteristics, and precise weight management are the four elements that define the efficiency and safety of every Spearfishing session.
Deep Blue offers a selection of products and brands that covers the full range of needs - from beginners making their first experiences in coastal waters to expert bluewater hunting practitioners targeting large pelagic fish - with the option to explore each product category in detail through the dedicated subcategories.
