Roller Speargun and Inverter Accessories for Spearguns

Loading Hook for Hunt Roller Spearguns

The loading hook for Hunt roller spearguns is made from 2.0 mm steel wire, ensuring high mechanical strength and long-lasting durability. This component is essential for assembling and using loading aids in roller systems, allowing the line to be secured safely and reliably while loading the speargun.

Used together with line and protective rubber, the hook allows you to assemble the loading aids required for efficient installation of the roller system, improving ease of loading and practicality in the water.

Technical features

• Material: 2.0 mm steel wire with high mechanical strength
• Compatibility: specific for roller systems
• Function: assembly of loading aids with line and protective rubber

Use

1. Assemble the hook with the line and protective rubber.
2. Install the loading aid on the roller speargun to make loading easier.
3. Ensure the system is properly secured and safe before freediving.

M4 Axle for Ermes Pulleys

The 6.0 mm diameter axle with M4 threads is designed for mounting and replacing pulleys in equipment dedicated to freediving and spearfishing.

Available in three precise lengths to suit different technical configurations:

• 55 mm
• 60 mm
• 82 mm

Each axle is supplied complete with screws and washers to ensure safe, stable installation, providing reliability and precision when securing the pulleys.

The use of durable materials and the precision of the M4 threading ensure good mechanical strength and durability even in underwater environments, maintaining the efficiency of the mechanical components during freediving and spearfishing activities.

Ermes M4 Axle for Pulleys

The Ermes M4 axle is a specific component for mounting pulleys, designed to ensure a stable and secure connection. It features a nominal diameter of 6.0 mm with M4 threading, suitable for use in freediving and spearfishing equipment where strength and precise assembly are essential.

Technical Features

• Axle diameter: 6.0 mm
• Thread: M4
• Available in three lengths: 55 mm, 60 mm, and 82 mm
• Complete with screws and washers for precise, secure assembly

Use and Installation

The axle is designed for easy assembly with pulleys, thanks to the complete set of screws and washers that ensure optimal hold and reduce the risk of loosening during underwater use.

Conte Sub M4 Axle for Stainless Steel Pulleys

The Conte Sub M4 axle is specifically designed for pulleys with an inner diameter of 6 mm, made from stainless steel to ensure mechanical strength and durability in underwater environments.

Technical Features

• Material: high-strength stainless steel
• Axle diameter: 6.0 mm with M4 thread
• Available lengths: 45 mm, 50 mm, 56 mm, 60 mm, 80 mm
• Included in the kit: screws and two pairs of washers for secure, efficient installation

Use and Benefits

This axle is ideal for spearfishing and freediving applications where precision pulley installation is required, ensuring stability and reliability even during extended underwater use and contact with saltwater.

The use of stainless steel improves the component’s service life, helping prevent corrosion and wear, while the multiple washers provide a solid assembly that maintains the correct position of the pulley system.

Pair of Inverter Pulleys for Roller Spearguns

This pair of Inverter pulleys is specifically designed for Roller Spearguns used in spearfishing and freediving.

The external pulleys are made from black Derlin, a polymer with high mechanical strength, machined from solid stock by turning to ensure dimensional precision and long-lasting durability.

Technical specifications

• Outer diameter: 30 mm
• Groove diameter: 26 mm
• Internal diameter (shaft): 6 mm
• Thickness: 11 mm

Precise turning ensures a uniform surface that allows smooth force transmission and greater efficiency in line tension.

Thanks to the materials used and precision machining, these pulleys help maintain optimal speargun trim, improving control and handling during tracking and release.

Pair of Derlin Roller Speargun Pulleys for Freediving Spearfishing

This pair of Roller Speargun pulleys is made from black Derlin, a material chosen to provide greater mechanical strength and optimal performance under both static and dynamic load.

The pulley groove features a specially designed profile to eliminate the problem of band slippage during contraction, ensuring efficient power transmission and improved reliability during freediving or spearfishing.

Technical features

• Outer diameter: 28 mm
• Groove diameter: 19 mm
• Inner diameter (shaft): 6 mm
• Thickness: 16 mm

The combination of these parameters ensures proper hydrodynamics of the pulleys within the system, with extremely low resistance to movement. The use of Derlin also helps maintain lightness and rigidity, key elements for optimizing the tracking and accuracy of the speargun or sled.

Spear Truck Performance pulley system for Invert Roller Spearguns

Spear Truck Performance is a pulley system designed specifically to organize and support band loading on Invert Roller Spearguns and demultiplied spearguns.

Technical features

• CAD design and manufacturing with advanced technologies to ensure precision and reliability.
• Pulley machined from solid special polymer, with a deep groove for maximum grip and to prevent line slippage.
• Band attachment via three hourglass-shaped cylinders that ensure a symmetrical and balanced load on the trolley.
• Frame made of stainless steel, consisting of two 1.5 mm plates to combine mechanical strength and lightness.
• Through-type pulley axle, designed to maintain hold under any load without compromising system operation.
• Diamond-shaped configuration capable of mounting up to four bands, optimizing overall size while maintaining correct band positioning.

Benefits in spearfishing use

The structure ensures a perfectly distributed load that improves the efficiency of power transfer from the bands to the speargun, making the gun easier to handle while spearfishing. The quality of the materials and the design contribute to greater durability and system reliability in the marine environment.

Spear Truck CB5 - Performance: Pulley System for Invert Roller Spearguns

Spear Truck CB5 - Performance is an advanced pulley system designed specifically to manage and support band load on Invert Roller spearguns. Manufactured with precision CAD technologies, this system is engineered to optimize band organization, ensuring even load distribution.

Design and Materials

The pulleys are machined from solid stock using a special high-sliding polymer, with a deep groove that ensures excellent band grip, preventing slippage during use. The trapezoidal frame, made from solid-stock stainless steel, provides high mechanical strength and securely retains the bands inside it. The structure prevents unintended band slipping and allows effective pulley activation.

Functionality and Technical Benefits

• The system features five small hourglass-shaped cylinders that allow the bands connected to the trolley to move in parallel, improving smoothness and precision in power transmission.
• Supports the installation of multiple bands, optimizing space and maintaining correct positioning for balanced tension.
• Ensures a symmetrical, balanced load that improves the speargun’s reliability and durability during tracking and firing.

Applications

This system is particularly suitable for positioning bands under the belly of flat, wide speargun bodies, offering high efficiency in band organization for spearfishing and freediving.

Stopper Tube for AISI 316 Stainless Steel Roller Speargun

The Stopper Tube is a component specifically designed to be installed on Roller Speargun muzzles. Made from AISI 316 stainless steel, it ensures high mechanical strength and durability in the marine environment.

The tube is engineered to dampen the whiplash effect at the end of the wishbone’s travel, protecting the line from wear and breakage on impact. Its clean design and quality finish ensure smooth, reliable operation during spearfishing or freediving.

Technical Features

• Material: AISI 316 stainless steel, corrosion-resistant in underwater environments
• Outer diameter: 16 mm
• Inner diameter: 13 mm
• Two line guide teeth on the end for secure shaft locking at the speargun muzzle
• Lightened structure in several areas to reduce overall weight

Available Versions

• Length 110 mm
• Length 170 mm

Included

The product includes four self-tapping screws for direct mounting on the Roller Speargun muzzle, ensuring stability and easy installation.

Invert Wood 37 Muzzle Kit for Inverted-Propulsion Wooden Spearguns

Invert Wood 37 is a muzzle kit designed specifically for wooden spearguns with an inverted propulsion system and integrated stopper, suitable for models such as Demoltiplicati, Vela, Volcan, Invert Roller Speargun, and similar designs.

Construction and Materials

The kit frame is made of laser-cut stainless steel, reducing size and weight—key factors for improving the trim and tracking of the speargun while freediving.

The Invert 37 pulleys mounted on the frame are machined from Derlin and solid-turned PVC, materials selected to ensure maximum strength and long-lasting durability under the stresses of spearfishing.

Installation and Compatibility

The Invert Wood 37 muzzle kit is installed using the pulley through-shaft and the rear locking pin, both essential components for ensuring a stable and secure fit.

The kit is optimized for inverted-propulsion wooden spearguns, enhancing the functionality and precision typical of this type of spearfishing gun.

Ermes Hard 3 - Ceramic: Pulley System for Invert Roller Spearguns

Hard 3 - Ceramic is a pulley system designed specifically for Invert Roller spearguns, engineered to optimize load distribution and ensure even balance across the speargun structure.

The pair of pulleys ensures proper alignment and orderly routing of the elastic line, improving thrust transmission smoothness and symmetrically supporting the forces applied during the speargun loading phase. This system helps maintain consistent mechanical efficiency and reliability of the weapon while underwater.

Materials and Technical Features

• Stainless steel frame made by laser cutting, ensuring mechanical strength and long-lasting durability even in marine environments.
• Pulleys equipped with ceramic bearings, which reduce friction while providing greater smoothness and responsiveness in the speargun mechanism.
• Pulley diameter: 22 mm, for proper band wrapping without deformation.
• Pulley height: 5 mm, an ideal size for a compact footprint while ensuring effective load distribution.

This pulley system is suitable for freedivers and spearfishers using spearguns with an Invert Roller mechanism, as it combines lightness and mechanical strength, ensuring more efficient force transmission and maintaining the speargun’s trim during spearfishing.

Pair of Invert 37 Pulleys for Roller Spearguns

This pair of Invert 37 pulleys is specifically designed for Roller Speargun spearguns used in spearfishing. The outer component is made from black Derlin, machined from solid stock to ensure strength and long service life.

The pulleys are suitable for supporting lines with a diameter up to 3.0 mm, ensuring reliable operation during freediving sessions.

Technical Features

• Outer diameter: 37 mm
• Groove diameter: 31 mm
• Inner diameter (shaft): 6 mm
• Thickness: 6 mm

The internal bushing is made using high-tech materials and processes, ensuring optimal smoothness and high mechanical resistance during underwater use. This provides smooth line movement and improved shot efficiency.

Special Stainless Steel Side Plates for Roller Spearguns

The Special Side Plates are made from laser-cut stainless steel, designed specifically for roller spearguns with 6 mm diameter pins.

One of the two side plates features a forked end that allows the shaft’s nylon line to pass through, preventing direct contact with the bands and reducing wear on the sliding materials.

The robust 1.5 mm thick construction provides optimal mechanical strength without adding excessive weight to the assembly.

Technical Features

• Compatible with 6 mm diameter pins
• Stainless steel thickness: 1.5 mm
• Center-to-center distance of mounting holes: 7.5 cm
• Forked end for shaft nylon line routing
• Laser-cut finish for precision and clean edges
• Supplied with 4 self-tapping screws for quick, secure installation

Benefits in Use

• Ensure long-lasting durability thanks to stainless steel resistant to marine corrosion
• The forked end reduces wear on the nylon line and power bands, maintaining consistent shot smoothness
• Simple, reliable installation with included self-tapping screws

U1 Special Stopper for Roller Spearguns

The U1 Special Stopper is a round-base accessory specifically designed for installation on roller speargun muzzles. Made from lightened stainless steel, it ensures strength and stability during underwater use.

Materials and Finishes

The stopper body is laser-cut and undergoes mechanical and chemical treatments designed to eliminate sharp edges, improving safety and ensuring a uniform finish. The upper edges are rounded and carefully polished to prevent premature wear of textile wishbones, preserving their integrity and service life.

Design and Compatibility

The shape and dimensions have been engineered to allow use with any standard shaft available on the spearfishing market. The front section features two tips that make it easier to route the shooting line needed to securely lock the shaft. The symmetrical design allows the line wrap to be made from either the right or left side, offering maximum installation versatility.

Mounting and Installation

• Base with two mounting holes
• Mounted using the stainless steel self-tapping screws included in the package

Technical Specifications

• External dimensions: length 91 mm (including 77 mm of contact surface on the barrel), width 17 mm, height 15 mm
• Usable internal section dimensions: width 14 mm, height 13 mm
• Weight: 16 grams

Hard 7 Pulley Block for Invert Roller Spearguns

The Hard 7 pulley block is a pulley system specifically designed for Invert Roller Speargun spearguns. Its main function is to keep the band routing tidy and distribute the load symmetrically and evenly across the entire speargun structure.

This system ensures high reliability and allows up to 7 bands to be attached, providing uniform distribution of pulling force.

Technical Features

• Frame made from stainless steel by laser cutting for superior mechanical strength and long-lasting durability
• Pulleys with derlin bearings that ensure efficient smoothness and reduce friction during the loading phase
• Pulley diameter: 22 mm
• Pulley height: 5 mm

Benefits for Freediving and Spearfishing

Thanks to its balanced construction and the use of selected materials, the Hard 7 pulley block improves load distribution on the bands, optimizing swing accuracy and control while loading the speargun. The derlin bearing provides excellent fluidity and smooth travel, reducing effort and increasing band efficiency.

R1 Special Stopper for Roller Spearguns

The R1 Special Stopper is a flat-base component designed to be installed on the muzzles of roller spearguns. Made from skeletonized stainless steel, it ensures strength and stability when mounted.

The body is laser-cut and undergoes mechanical and chemical treatments that remove sharp edges and even out the coloration, improving the surface finish.

The upper edges are rounded and polished to prevent premature wear of textile wishbones, ensuring longer life for the material in contact.

Its shape and dimensions are designed to allow the use of any standard commercially available shaft, offering compatibility and versatility.

Design and mounting

• Front section equipped with two symmetrical line-wrap pins, allowing the shaft to be effectively secured with the line wrap from either the right or the left.
• Base with two holes for mounting using the included stainless steel self-tapping screws, ensuring a solid and durable installation.

Technical specifications

• External dimensions: length 85 mm (of which 70 mm rests on the barrel), width 15 mm, height 15 mm
• Usable internal section dimensions: width 11 mm, height 13 mm
• Weight: 18 grams

Robber Load Assist for Loading Freediving and Roller Speargun Spearguns

Robber Load Assist is a loading aid designed to make it easier to load particularly long spearguns or spearguns equipped with a roller system. Its construction helps reduce the muscular effort required during the loading process, improving practicality for freedivers and spearfishers.

Technical features

• Made with a 16 mm diameter circular rubber band for adequate strength and long-lasting durability
• Stable loading hook, designed for secure attachment to the speargun wishbone
• Durable and lightweight textile Wishbone, engineered to ensure comfort and reliability in the water

How to use

1. Attach the hook to the speargun wishbone
2. Pull the loading aid rubber band until it reaches the desired shark fin or notch on the speargun shaft
3. Once the correct tension is reached, grip the speargun rubber band and complete loading with greater ease and control

Benefits for spearfishing and freediving

Using the Robber Load Assist provides greater efficiency during the loading phase, reducing fatigue and improving energy management during the dive. The material design ensures light weight and mechanical strength, essential features for equipment dedicated to freediving and spearfishing.

D60 Delrin Pulley for Spearfishing

The D60 pulley is made from Delrin, a material known for its high mechanical strength and light weight, ideal for use in freediving spearfishing and underwater applications. The 60 mm outer diameter ensures proper alignment and force distribution during use.

Dual Pretensioning Function

The pulley allows dual pretensioning of the band system, combining a circular band with an additional pair connected via Dyneema positioned inside the pulley groove. This configuration improves force transmission efficiency and shot release accuracy.

Additional Technical Features

• Three pre-drilled holes for mounting the reel directly to the speargun, ensuring stability and ease of use
• Delrin construction, offering an optimal balance between rigidity and vibration damping capability

Croclock Double Tensioning Hook for Inverter Systems

The Croclock double tensioning hook is an essential component for managing bands on spearguns equipped with inverter systems. Made entirely of stainless steel, it ensures high mechanical strength and durability in the marine environment.

Designed to provide a neat attachment point for two pairs of bands, this hook ensures balanced tension distribution, improving the efficiency of the propulsion system. It also integrates a dedicated mount for installing a reel, making shooting line management easier.

Installation is simple and secure: it attaches easily to the underside of the speargun barrel, ensuring stability and practicality during use in the water.

LP Low Profile Pulleys for Spearfishing Spearguns

The low-profile LP Pulleys, designed by Contesub, are developed for spearfishers who require easy lateral tracking of the speargun. Their compact structure improves handling and ergonomics during dives.

Technical Features

• Equipped with a double internal bushing made with technologically advanced materials and precision manufacturing processes.
• Allow smooth band movement even under high loads, optimizing the efficiency of the roller system.
• Compatible with 6 mm axles.
• Suitable for bands with diameters up to 18 mm, with a preference for 16/17 mm bands.
• Thickness (pulley width) of 15 mm, balanced to minimize bulk without sacrificing mechanical strength.

Applications and Use

LP pulleys improve force transmission and band tension smoothness in spearfishing spearguns, making lateral tracking easier and contributing to more precise trim during underwater shooting.

Product Details

• Package containing 2 pulleys.
• Ideal for optimizing roller systems on spearguns with large-diameter bands.

Hard 5 Pulley Block for Invert Roller Spearguns

The Hard 5 pulley block is a pulley system specifically designed for Invert Roller Speargun technology spearguns. Its main function is to keep the bands neatly arranged, ensuring symmetrical, balanced load distribution across the entire speargun structure.

Technical Features

• Frame: laser-cut stainless steel to ensure high mechanical strength and long-lasting durability.
• Pulley diameter: 18 mm, optimized to ensure smooth band movement.
• Pulley height: 5 mm, sized to promote proper force transmission.
• Bearings: made of Delrin, a high-strength, low-friction material for quiet, reliable operation.
• Compatibility: ideal for attaching up to 5 bands, allowing a balanced load configuration for greater accuracy during spearfishing.

Functionality and Benefits

The Hard 5 system allows optimal load balancing, essential for maintaining stability and accuracy when tracking the speargun. The symmetrical band layout improves power transmission, reducing flex and energy loss along the spear shaft’s trajectory.

The robust design and use of selected materials such as stainless steel and Delrin ensure proven resistance to wear and corrosion, even in marine environments. The compact pulleys and their proper sizing optimize the smoothness of the mechanism, improving band propulsion efficiency.

Applications

• Suitable for spearfishing spearguns with a Roller Speargun system
• Recommended for spearfishers who need a balanced, reliable system for managing multiple loads
• Provides stable trim, improving control and accuracy in underwater shooting

Croclock Mono Tensioning Hook in AISI 316 Stainless Steel

The Croclock Mono tensioning hook is specifically designed for mono roller systems and made entirely from AISI 316 stainless steel to ensure corrosion resistance and durability in underwater environments.

Technical Features

• Positioned under the speargun barrel to make line insertion easier
• Effectively prevents the bands from coming out after the shot, improving operational safety
• Equipped with 2 self-tapping screws for stable, secure fastening

Functionality and Applications

The pretensioning hook is installed under the barrel of spearguns with mono roller systems, optimizing band tension for improved thrust transfer during the shot. Its design allows easier line management, increasing practicality when rigging and using the speargun for spearfishing.

Single Pretensioning Pulley for Dyneema Bands

This pulley is specifically designed for single pretensioning of a pair of bands tied with Dyneema, commonly used in spearfishing for spearguns.

Made from durable materials, it ensures excellent mechanical reliability and long service life, essential for keeping band tension consistent during underwater use.

Technical Features

• Outer diameter: 18 mm
• Integrated hole for direct mounting to the speargun, ensuring a stable and secure installation
• Compatible exclusively with pairs of bands tied with Dyneema for maximum efficiency in force transmission

The pulley enables precise pretensioning of the bands, improving smoothness and tracking cadence when swinging the speargun.

Single Roller Power Head - Glass Muzzle Kit for Spearguns

The Single Roller Power Head - Glass Roller Speargun conversion kit, made in Australia, is designed to improve the power and accuracy of spearguns for spearfishing and freediving. This system eliminates traditional recoil by optimizing the use of barrel length for more effective and controlled power transfer.

Technical Features

• One-piece main body made from robust molded material for high mechanical strength
• Two pulleys with glass bearings with low friction, made from acetal with encapsulated glass balls to withstand sand and salt water, reducing maintenance and ensuring long-term durability
• Ultra-light side plates in carbon fiber to ensure lightness without compromising strength
• Integrated line guide allowing the attachment of shock absorbers or lines up to 2.5 mm thick
• Complete with three types of dyneema line, barrel adapter, and rocker link
• Available with 14, 16, and 18 mm bands and adapters from 24.5 to 26.5 mm, to fit different speargun sizes

Benefits for spearfishing and freediving

The roller system allows 100% of the barrel length to be used to drive the shaft, increasing generated power thanks to the pretensioned bands and an optimized ratio between band stretch and shaft weight. This configuration improves the accuracy, penetration, range, and handling of the speargun. The use of lightweight yet durable materials also contributes to smooth movement and better trim in the water.

Compatibility and Use

• Compatible with most Euro-style or South African-style spearguns equipped with a removable cylindrical muzzle
• Recommended for spearguns between 70 and 110 cm in length
• Also high-performing on 120 to 130 cm spearguns when equipped with 18 mm bands

Installation and Maintenance

The kit includes detailed, easy-to-follow assembly instructions, allowing for a quick and efficient conversion. The low-maintenance bearings reduce wear and ensure reliable use even in saltwater environments.

Invert Style Wood 37 - Muzzle kit for wooden spearguns with inverted propulsion

Invert Style Wood 37 is a muzzle kit designed specifically for wooden spearguns with an inverted propulsion system and integrated stopper, ideal for models such as Demoltiplicati, Vela, Volcan, and Invert Roller Speargun.

The kit frame is CNC-machined from a solid block of Delrin (acetal resin), a material known for its light weight and mechanical strength, helping improve the trim and ease of swing of the speargun.

The system integrates two Invert 37 pulleys, also machined from solid Delrin, ensuring superior durability and efficient power transfer during speargun band loading and release.

The kit is installed on the speargun body using the pulley axle and a rear locking pin, both included in the package, ensuring precise and secure mounting.

Main technical features

• CNC-machined Delrin frame to optimize lightness and strength
• Compatible with wooden spearguns with inverted propulsion and integrated stopper
• Solid-machined Invert 37 pulleys for high mechanical strength
• Easy installation using the included pulley axle and rear locking pin

Hard 7 - Ceramic: Pulley System for Inverter Roller Spearguns

Hard 7 - Ceramic is a pulley system specifically designed for Inverter Roller Spearguns, engineered to keep the bands neatly organized and distribute the load symmetrically across the entire speargun structure.

Technical Features

• Stainless steel frame made with laser cutting, ensuring strength and long-lasting mechanical resistance.
• 22 mm diameter and 5 mm high pulleys, equipped with ceramic bearings for improved smoothness and greater durability compared to traditional bearings.
• Capacity to hook up to 7 bands, ensuring balanced and optimal load distribution.

Benefits for Freediving and Spearfishing

The Hard 7 - Ceramic system configuration helps equalize band tension, improving responsiveness and accuracy when firing the speargun. The ceramic bearings significantly reduce friction, increasing movement smoothness and allowing more controlled tracking. The stainless steel frame provides the corrosion resistance required in marine environments, maintaining stability and performance over time.

Technical Specifications

• Frame material: laser-cut stainless steel
• Pulley diameter: 22 mm
• Pulley height: 5 mm
• Bearings: ceramic, for reduced friction and increased durability
• Compatibility: exclusively for Inverter Roller Spearguns
• Band capacity: up to 7 bands

Pulley Inverter for Roller Spearguns with Internal Ceramic Bushing

This pair of Inverter pulleys is specifically designed for Roller Speargun spearfishing spearguns, ensuring smooth and reliable operation.

Each pulley is made from black Derlin machined from solid stock by turning, a material known for its high mechanical strength and light weight—essential features for efficiency and durability in underwater use.

The internal ceramic bushing ensures superior smoothness and longer service life, reducing friction and improving force transmission precision during loading and firing of the speargun.

Technical dimensions

• Outside diameter: 30 mm
• Groove diameter: 26 mm
• Internal diameter (shaft): 6 mm
• Thickness: 11 mm

These specifications ensure a precise setup and optimal compatibility with Roller Speargun mechanisms, allowing smooth action and better line management during freediving and spearfishing use.

Stark+ Muzzle for Spearfishing Spearguns

The Stark+ Muzzle is designed to ensure a watertight seal, lightweight construction, and mechanical strength for spearfishing applications. It stands out for its compact, rugged structure, ideal for use with spearguns featuring a barrel with a 26 mm internal diameter.

Technical Features

• Reinforced stopper plate, thicker than the previous model, with two dedicated eyelets for direct attachment of the return lines.
• Incorporates two line-wrap pins for routing the line in both directions, plus a line-guide eyelet for precise control of the line coming off the reel.
• Optimized pulley mounting system, ensuring smooth travel during tracking and improving cord management.
• Double O-Ring connection for a perfect watertight seal on the barrel, preventing water ingress and ensuring reliability while freediving.
• Simple fastening with a self-tapping screw, supplied with a pair of plastic discs to protect the wishbone knot and prevent impacts against the stopper.

Compatibility

Designed for use with spearfishing spearguns with a 26 mm internal barrel diameter, the Stark+ Muzzle integrates easily with the most common setups in the spearfishing sector.

Croclock Mono Tensioning Hook in AISI 316 Stainless Steel

The Croclock Mono tensioning hook is a dedicated component for double roller systems used on spearguns for spearfishing. Made entirely from AISI 316 stainless steel, it ensures high, long-lasting mechanical strength in marine environments.

It is positioned under the speargun barrel, making it easier to insert the line during setup. Thanks to its design, it effectively prevents the bands from coming off after the shot, keeping tension consistent and optimizing shot accuracy.

Technical features and benefits

• Material: AISI 316 stainless steel with high corrosion resistance in saltwater
• Compatible with double roller systems, mounted under the speargun barrel
• Makes it easier to insert and secure the line
• Prevents band loss after release, ensuring stable tension
• Includes 3 self-tapping screws for simple, secure installation

Level 2 Frame for Roller Speargun Propulsion Spearguns

The Level 2 frame is designed as a lower band anchor specifically for spearguns with a roller propulsion system, optimized primarily for use in inverter systems.

Technical Features and Functionality

The frame configuration allows the bands to be positioned in a rearward seat, almost against the trigger, significantly improving the overall efficiency of the propulsion system and ensuring greater accuracy during the shot.

Made entirely from stainless steel and laser-cut, the frame provides high mechanical strength and durability in underwater environments.

Comfort and Ease of Use

• Compact dimensions and low weight to avoid altering the speargun’s trim during freediving or spearfishing
• Simple, quick installation on the speargun thanks to its functional design
• Foldable and removable trigger guard, adaptable to different user requirements
• Compatible with reels of any type, for customization and versatility in your underwater setup

Included Components and Accessories

• Supplied with specific screws and inserts for a solid, secure assembly
• Trigger guard can be installed or removed according to operational needs

Stainless Steel Pretensioning Anchor for Roller Speargun and Inverted Roller Spearguns

This pretensioning anchor, specifically designed for roller spearguns and inverted roller spearguns, is made entirely of stainless steel with high mechanical strength, ensuring durability and reliability in underwater environments.

It is mounted on the underside of the speargun barrel using a pair of stainless steel self-tapping screws, included, which provide secure anchoring without compromising trim or accuracy while spearfishing.

Technical Specifications

• Material: Marine corrosion-resistant stainless steel
• Application: Compatible with roller and inverted roller spearguns
• Available size: Small
• Included accessories: Stainless steel self-tapping screws for installation

The pretensioning anchor enables effective band adjustment, improving tension and responsiveness of the speargun, helping provide smoother tracking and more precise thrust during release.

Pathos Roller Speargun Kit for spearfishing spearguns

The Pathos Roller Speargun Kit includes the open roller muzzle and a floating stabilizer designed to optimize spearfishing spearguns with a tubular barrel with an internal diameter of 26 mm.

Technical features of the roller muzzle

• Compatible with spearguns with Ø 26 mm tubular barrels
• Hole for routing the circular band, ensuring stable and even tension
• Front extension to support the lower flopper of the shaft, improving the stability of the retaining ring
• Allows both bands to be loaded simultaneously without interference, making speargun setup easier

Functions of the floating stabilizer

• Improves the speargun’s balance in the water, increasing ease of tracking and aiming
• Reduces recoil after the shot, helping improve shot accuracy
• Equipped with three attachment points spaced every 13 centimeters, making band loading easier and allowing a customized setup

Benefits of the Pathos Roller Speargun Kit

This kit is a technical solution for converting a band speargun into a Roller Speargun, optimizing the shooting mechanics and improving in-water control during spearfishing. More efficient band use and improved speargun balance support smoother handling and more precise spearfishing shots.