Hunt Target Trigger Mechanism in AISI 316 for Spearfishing Spearguns

The Hunt Target trigger mechanism is made from AISI 316 stainless steel and designed for spearfishing and freediving spearguns. It features an integrated line-retention system (line release) with a semi-curved Trigger design, inspired by the most advanced semi-automatic hunting firearms, for an ergonomic grip and precise response.

This mechanism acts on the side of the release sear, keeping the trigger pull weight consistent even under heavy line tension, ensuring high sensitivity without sudden increases in load.

Main Technical Features

• Side line release positioned on the right, measuring 22 mm in length and 2.5 mm in thickness, optimized for proper line retention.
• Mechanical pull safety test: 500 kg.
• Trigger pull set at 1.5 kg, stable up to 180 kg of shaft pull, equivalent to 5–6 bands with a 16 mm diameter at 320% elongation.
• Compact, rear-set mechanism, allowing 4–5 cm more band stretch compared to traditional mechanisms, resulting in greater propulsion power.
• Dimensions of the section housed in the stock: 47 mm length, 16 mm thickness, 18 mm height.
• Long levers for maximum sensitivity and reduced trigger force, ensuring smooth, intuitive operation even under high-load conditions.

Innovations and Specific Advantages

• Mechanism silencing via anti-noise rubber to eliminate the firing click, avoiding alerting fish during spearfishing.
• Automatic line release: the shaft positions smoothly and optimally to retain the line efficiently.
• Reversible line release, configurable for the right or left side simply by unscrewing the turned bushing that forms the rotation axis.
• Reinforced line release (2.5 mm thick), polished and angled to ensure smooth operation and protect nylon monofilament.
• Dual spring on both the Trigger and the shaft-retaining sear to ensure consistently secure and stable engagement.
• Blackened screws and countersunk seats for a cleaner sight line and a refined, functional aesthetic.
• Blackened AISI 316 mechanism housing, 2 mm thick, with an anti-reflective effect essential for not disturbing fish during Freediving.
• Polished stainless steel Trigger and retaining sear, providing chromatic contrast and improved wear resistance in marine environments.
• Hardened and polished AISI 316 pins at 48HRC for high mechanical strength and smooth mechanism operation.
• Welded pins to prevent tampering and ensure a solid, long-lasting fit over time, even with intensive use.

Available Versions

Hunt Target mechanisms are available in four specific configurations:

1. Target 2
2. Target 2 Combat
3. Target 2 Match
4. Target 2 Match Combat

These variants allow you to choose the version best suited to different spearfishing needs, integrating technical innovations to maximize the precision, sensitivity, and practicality of the underwater firing system.

Hunt Target Trigger Mechanisms for Freediving and Spearfishing Spearguns

The Hunt Target trigger mechanisms are made from AISI 316 stainless steel, ensuring mechanical strength and durability even in underwater environments. They integrate a line retention system (line release) with a side-mounted design, which acts on the side of the sear, keeping trigger pull weight consistent even under high line tension.

Technical and Construction Features

• Materials: Blackened AISI 316 Stainless Steel with anti-reflective treatment, levers with minimum 60 HRC hardness and polished surfaces to reduce roughness.
• Mechanism dimensions: 47 mm long mechanism housing, 16 mm thick, 18 mm high, optimized for compact installation in the speargun barrel.
• Line release: Positioned on the right, 22 mm long, 2.5 mm thick, reversible for right- or left-side mounting by simply unscrewing the pin.
• Trigger pull weight: Variable from 1.5 kg to 180 kg of shaft load, supports up to 5-6 bands with 16 mm diameter and 320% stretch.
• Safety test: Tensile strength up to 500 kg.
• Fixing pins: Welded and treated to 48 HRC, ensuring solid fastening and tamper-resistant safety.
• Noise-reduction system: Rubber inserts eliminate the typical trigger click, reducing detection by fish.
• Trigger: Semi-curved shape inspired by semi-automatic hunting shotguns, with a short and highly intuitive travel for excellent trigger feel and smooth release.

Available Versions

The Hunt Target mechanisms are available in four variants, each developed for specific spearfishing needs:

1. Target 2 Standard: Rear-set, compact mechanism with excellent release feel.
2. Target 2 Combat: Designed to support a high number of bands, with a lightened housing and slim side profile. The levers feature high surface hardness (minimum 60HRC).
3. Target 2 Match: Allows the trigger position to be adjusted within a 10 mm range (5 mm forward and 5 mm back) and rotated for customized ergonomics based on the position of the first phalanx of the index finger during the shooting motion.
4. Target 2 Match Combat: Combines the features of the Combat version with the Match trigger position adjustment.

Functional Details

• The very long levers reduce the force required on the trigger, increasing sensitivity and accuracy during the shot.
• The rear-set position of the mechanism allows an additional 4-5 cm of band propulsion stroke to be used, optimizing the energy transferred to the shaft.
• The dual spring, on the trigger and on the shaft sear, ensures secure and reliable engagement of the shaft.
• Blackened screws and countersunk seats provide a clean, understated look and reduce reflections that could disturb the spearfisher.

The YETI Espresso 6 OZ cup is designed to deliver high performance and maximum durability, perfect for anyone looking for quality and reliability even during outdoor coffee breaks. Made from rust-resistant 18/8 stainless steel, it features double-wall vacuum insulation that keeps your coffee at the right temperature longer, preserving its aroma and flavor.

The DuraSip ceramic interior coating protects the steel from beverage acidity, while the practical rigid handle improves ergonomics and comfort during use. With a 177 ml capacity, it is compatible with most espresso machines, stackable to save space, and dishwasher safe. Sold as a pair, it is ideal for sharing every moment.

The YETI 6 OZ Espresso Cup is designed to deliver high performance and maximum durability, perfect for anyone seeking quality and reliability even during outdoor coffee breaks. Made from rust-resistant 18/8 stainless steel, it features double-wall vacuum insulation that keeps your coffee at the right temperature longer, preserving its aroma and flavor.

The DuraSip ceramic interior coating protects the steel from beverage acidity, while the practical rigid handle improves ergonomics and comfort during use. With a 177 ml capacity, it is compatible with most espresso machines, stackable to save space, and dishwasher safe. Sold as a pair, it is ideal for sharing every moment.

The YETI Espresso 6 OZ cup is designed to deliver high performance and maximum durability, perfect for anyone looking for quality and reliability even during outdoor coffee breaks. Made from rust-resistant 18/8 stainless steel, it features double-wall vacuum insulation that keeps your coffee at temperature longer, preserving its aroma and flavor.

The DuraSip ceramic interior coating protects the steel from beverage acidity, while the practical rigid handle improves ergonomics and comfort during use. With a 177 ml capacity, it is compatible with most espresso machines, stackable to optimize space, and dishwasher safe. Sold as a pair, it is ideal for sharing every moment.

The YETI 4 OZ Espresso cup is designed to deliver maximum thermal performance and durability, ideal for both everyday use and your outdoor adventures. Made from rust-resistant 18/8 stainless steel, it ensures long-lasting durability and reliability, while the double-wall vacuum insulation keeps your coffee at the ideal temperature for longer.

The DuraSip ceramic interior coating protects the steel from the acidity of beverages, preserving the flavor and quality of your espresso. With a 118 ml capacity, it is compatible with most coffee machines, stackable for efficient storage, and dishwasher safe. Sold as a pair, it’s the perfect solution for sharing every coffee break, wherever you are.

The YETI 4 OZ Espresso Cup is designed to deliver maximum thermal performance and durability, ideal for both everyday use and your outdoor adventures. Made from rust-resistant 18/8 stainless steel, it ensures long-lasting durability and reliability, while the double-wall vacuum insulation keeps your coffee at the ideal temperature for longer.

The DuraSip ceramic interior coating protects the steel from the acidity of beverages, preserving the taste and quality of your espresso. With a 118 ml capacity, it is compatible with most coffee machines, stackable for efficient storage, and dishwasher safe. Sold as a pair, it’s the perfect solution for sharing every coffee break, wherever you are.

Elastic Line Tensioner Shock Absorber for Spearfishing Spearguns

The elastic line tensioner Shock Absorber is an essential component for rigging a spearfishing speargun, designed to reduce stress on the monofilament and ensure greater durability and safety during underwater use.

The device can be installed in two configurations:

• between the muzzle and the monofilament on spearguns without a reel;
• between the reel line and the monofilament on spearguns with an integrated reel.

This setup introduces an elastic component that helps the monofilament wraps lay neatly and evenly, improving tension management and load distribution.

The shock-absorbing system increases the monofilament’s wear resistance up to tenfold at the most critical point, reducing replacement frequency and improving safety during the catch. In addition, thanks to this load absorption, the muzzle or reel is also subjected to less mechanical stress, extending its service life.

Technical Features

• Material: highly durable elastic rubber
• Color: black
• Available Sizes: M and L
• Equipped with two end loops for easy installation and anchoring

Benefits for Spearfishing

• Improves the elasticity and tension of the line, ensuring optimal setup
• Reduces stress on the monofilament for greater durability while freediving
• Helps preserve the integrity of the muzzle and reel through shock absorption
• Easy to install and adaptable to different speargun tensioning systems

Salvimar Shock Absorber for Spearguns

Salvimar Shock Absorber is a rubber shock absorber designed specifically for spearguns used in spearfishing.

Its main function is to make it easier to attach the line, allowing quick and secure installation, while also absorbing the shaft’s impact at the end of its travel. This shock-absorbing capability is essential for preventing tears and breakage in the monofilament, preserving its integrity during dives.

Made from durable, flexible rubber, it provides effective line protection while maintaining good elasticity, helping extend the material’s service life in underwater use.

The device comes in red, making it easy to spot during setup and after the dive.

The YETI Rambler 12 OZ (340 ml) thermos is designed to deliver maximum practicality and durability for kids’ everyday activities. Made from rust-resistant 18/8 stainless steel, it ensures excellent durability and safety, ideal for use away from home and on small adventures.

The double-wall vacuum insulation keeps drinks hot or cold for longer, ensuring consistent performance in any situation. No Sweat technology prevents condensation, providing a dry, secure grip at all times.

Equipped with a 100% leakproof cap with integrated straw, it is perfect for easy, spill-free use. The ultra-durable Duracoat finish protects against scratches and wear, while dishwasher-safe construction ensures maximum convenience.

The YETI Rambler 18 OZ (532 ml) thermos is designed to deliver maximum performance in every situation, from everyday use to the most demanding outdoor activities. Made from rust-resistant 18/8 stainless steel, it ensures high resistance to impact and wear, maintaining reliability and durability over time.

Thanks to its double-wall vacuum insulation, it keeps hot or cold drinks at temperature for long periods, even in changing environmental conditions. No Sweat technology prevents external condensation, ensuring a consistently dry, secure grip.

The 100% leakproof Chug Cap lid provides a watertight seal, ideal for leak-free transport. The ultra-durable Duracoat finish offers additional protection against scratches and fading, while dishwasher compatibility ensures maximum ease of cleaning.

With a capacity of 532 ml and compact dimensions, it is the ideal companion for sports, travel, and everyday use.

The YETI Rambler 18 OZ (532 ml) thermos is designed to deliver maximum performance in any situation, from everyday use to the most demanding outdoor activities. Made from rust-resistant 18/8 stainless steel, it offers excellent resistance to impacts and wear, maintaining reliability and durability over time.

Thanks to its double-wall vacuum insulation, it keeps hot or cold beverages at temperature for long periods, even in changing environmental conditions. No Sweat technology prevents exterior condensation, ensuring a consistently dry, secure grip.

The 100% leakproof Chug Cap lid provides a watertight seal, ideal for transport without leaks. The ultra-durable Duracoat finish offers additional protection against scratches and fading, while dishwasher compatibility ensures maximum cleaning convenience.

With a 532 ml capacity and compact dimensions, it is the ideal companion for sports, travel, and everyday use.

The YETI Rambler 18 OZ (532 ml) thermos is designed to deliver maximum performance in any situation, from everyday use to the most demanding outdoor activities. Made from rust-resistant 18/8 stainless steel, it provides excellent resistance to impacts and wear, maintaining reliability and durability over time.

Thanks to its double-wall vacuum insulation, it keeps hot or cold drinks at temperature for long periods, even in changing environmental conditions. No Sweat technology prevents external condensation from forming, ensuring a consistently dry, secure grip.

The 100% leakproof Chug Cap lid provides a watertight seal, ideal for transport without leaks. The ultra-durable Duracoat finish offers additional protection against scratches and fading, while dishwasher compatibility ensures maximum convenience when cleaning.

With a capacity of 532 ml and compact dimensions, it is the ideal companion for sports, travel, and everyday use.

The YETI Rambler 18 OZ (532 ml) thermos is designed to deliver maximum performance in any situation, from everyday use to the most demanding outdoor activities. Made from rust-resistant 18/8 stainless steel, it provides outstanding resistance to impacts and wear, ensuring long-lasting reliability and durability.

Thanks to its double-wall vacuum insulation, it keeps hot or cold drinks at temperature for extended periods, even in changing environmental conditions. No Sweat technology prevents external condensation, ensuring a consistently dry, secure grip.

The 100% leakproof Chug Cap lid provides a watertight seal, ideal for leak-free transport. The ultra-durable Duracoat finish adds extra protection against scratches and fading, while dishwasher compatibility ensures maximum convenience when cleaning.

With a capacity of 532 ml and compact dimensions, it is the ideal companion for sports, travel, and everyday use.

The YETI Rambler 26 OZ (769 ml) thermos is designed to deliver maximum performance in any setting, from everyday routines to the most demanding outdoor activities. Made from rust-resistant 18/8 stainless steel, it provides superior resistance to impacts, corrosion, and long-term wear. The ultra-durable Duracoat technology ensures a long-lasting finish that will not fade and maintains a secure grip even in challenging conditions.

Thanks to its double-wall vacuum insulation, the Rambler 26 OZ keeps drinks hot or cold for long periods, preserving temperature down to the last sip. The NoSweat system completely eliminates exterior condensation, keeping the thermos dry and easy to handle at all times. The 100% leakproof Chug Cap lid provides maximum security during transport, preventing spills even on the move.

With a capacity of 769 ml and compact dimensions (26 x 8.6 cm), it is the ideal solution for anyone looking for practicality, reliability, and high performance. It is also dishwasher safe, for quick and easy maintenance.

The YETI Rambler 26 OZ (769 ml) insulated bottle is designed to deliver maximum performance in any setting, from everyday routines to the most demanding outdoor activities. Made from rust-resistant 18/8 stainless steel, it provides superior resistance to impact, corrosion, and wear over time. The ultra-durable Duracoat technology ensures a long-lasting finish that won’t fade and maintains a secure grip even in tough conditions.

Thanks to its double-wall vacuum insulation, the Rambler 26 OZ keeps beverages hot or cold for long periods, preserving temperature down to the last sip. The NoSweat system completely eliminates exterior condensation, keeping the bottle dry and easy to handle. The 100% leakproof Chug Cap lid ensures maximum security during transport, preventing spills even on the move.

With a capacity of 769 ml and compact dimensions (26 x 8.6 cm), it is the ideal solution for anyone looking for practicality, reliability, and high performance. It is also dishwasher safe for quick and easy maintenance.

The YETI Rambler 26 OZ (769 ml) thermos is designed to deliver maximum performance in any setting, from daily routines to the most demanding outdoor activities. Made from rust-resistant 18/8 stainless steel, it provides superior resistance to impacts, corrosion, and long-term wear. The ultra-durable Duracoat technology ensures a long-lasting finish that won’t fade and maintains a secure grip even in tough conditions.

Thanks to its double-wall vacuum insulation, the Rambler 26 OZ keeps drinks hot or cold for long periods, preserving temperature down to the last sip. The NoSweat system completely eliminates external condensation, keeping the thermos dry and easy to handle at all times. The 100% leakproof Chug Cap lid ensures maximum security during transport, preventing spills even on the move.

With a capacity of 769 ml and compact dimensions (26 x 8.6 cm), it is the ideal solution for anyone looking for practicality, reliability, and high performance. It is also dishwasher safe for quick and easy maintenance.

The YETI Rambler 26 OZ (769 ml) bottle is designed to deliver maximum performance in any setting, from everyday routines to the most demanding outdoor activities. Made from rust-resistant 18/8 stainless steel, it provides superior resistance to impacts, corrosion, and long-term wear. The ultra-durable Duracoat technology ensures a long-lasting finish that won’t fade and maintains a secure grip even in tough conditions.

Thanks to its double-wall vacuum insulation, the Rambler 26 OZ keeps drinks hot or cold for extended periods, preserving the temperature down to the last sip. The NoSweat system completely eliminates external condensation, keeping the bottle dry and easy to handle. The 100% leakproof Chug Cap lid provides maximum security during transport, preventing spills even on the move.

With a capacity of 769 ml and compact dimensions (26 x 8.6 cm), it is the ideal solution for anyone looking for practicality, reliability, and high performance. It is also dishwasher safe for quick and easy maintenance.

The YETI Rambler 36 OZ (1.1 L / 1100 ml) thermos is designed to go with you on days away from home and outdoor adventures, delivering reliability and high performance. Made from rust-resistant 18/8 stainless steel, it features an extremely durable construction built to withstand impacts, corrosion, and intensive use. The ultra-durable Duracoat coatingmaintains color and grip over time, even in the most demanding conditions.

The double-wall vacuum insulation ensures optimal temperature retention, keeping drinks hot or cold down to the last sip, regardless of outside conditions. Thanks to NoSweat technology, the thermos always stays dry on the outside, improving comfort and grip. The 100% leakproof Chug Cap lid provides maximum security during transport, preventing any leaks.

With dimensions of 31.4 x 10.13 cm, a capacity of 1.1 liters, and an empty weight of 621 g, the Rambler 36 OZ is the ideal choice for anyone looking for capacity, durability, and convenience. It is also dishwasher safe, for quick and easy cleaning.

The YETI Rambler 36 OZ (1.1 L / 1100 ml) thermos is designed to go with you on days away from home and outdoor adventures, delivering reliability and high performance. Made from rust-resistant 18/8 stainless steel, it offers an extremely durable build that stands up to impacts, corrosion, and heavy use. The ultra-durable Duracoat finishmaintains its color and grip over time, even in the most demanding conditions.

The double-wall vacuum insulation ensures optimal temperature retention, keeping drinks hot or cold down to the last sip, regardless of outside conditions. Thanks to NoSweat technology, the thermos always stays dry on the outside, improving comfort and grip. The 100% leakproof Chug Cap lid provides maximum security during transport, preventing any leaks.

With dimensions of 31.4 x 10.13 cm, a capacity of 1.1 liters, and an empty weight of 621 g, the Rambler 36 OZ is the ideal choice for anyone looking for capacity, durability, and practicality. It is also dishwasher safe for quick and easy cleaning.

The YETI Rambler 46 OZ thermos (1.4 L / 1400 ml) is designed for those seeking maximum capacity and high performance during outdoor activities. Ideal for days at the beach or immersion in nature, it is made from rust-resistant 18/8 stainless steel, delivering superior resistance to impacts, corrosion, and heavy use. The ultra-durable Duracoat coating maintains color and grip over time, even in the most demanding conditions.

The double-wall vacuum insulation ensures optimal temperature retention, keeping drinks hot or cold down to the last sip, even in extreme environments. Thanks to NoSweat technology, the thermos always stays dry on the outside, improving comfort and grip. The 100% leakproof Chug Cap lid provides total security during transport, preventing any spills.

With dimensions of 31.4 x 10.13 cm and an extra-large capacity of 1.4 liters, the Rambler 46 OZ is the ideal choice for anyone needing extended autonomy and reliability. It is also dishwasher safe for quick and easy cleaning.

The YETI Rambler 18 OZ (532 ml) thermos is designed to deliver maximum reliability and convenience during travel, hikes, and everyday use. Made from rust-resistant 18/8 stainless steel, it provides excellent resistance to impact, wear, and outdoor conditions, maintaining consistent performance over time.

The double-wall vacuum insulation keeps hot or cold beverages at temperature down to the last sip, even in changing environments. No Sweat technology prevents condensation, ensuring a dry, secure grip at all times.

Equipped with a 100% leakproof HotShot lid, it lets you drink easily from any side and carry the thermos in your backpack without leaks. The ultra-durable Duracoat finish protects against scratches and fading, while dishwasher-safe construction ensures maximum convenience.

Avatar Ermes Muzzle for 26mm Barrels

The Avatar muzzle by Ermes is designed specifically for barrels with a 26 millimeter diameter, ensuring perfect integration with speargun setups for spearfishing.

This muzzle allows the installation of two circular bands that remain parallel and aligned thanks to the precise layout of the two fastening holes, ensuring even distribution of elastic force and improving the speargun’s responsiveness.

Made with durable materials, the Avatar muzzle ensures strength and long service life, essential elements for maintaining stable band power during release underwater.

Technical features

• Compatible with barrels with a 26 mm diameter
• Housing for two parallel bands
• Optimized hole positioning for even load distribution
• Materials resistant to marine environments

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.

Sigalsub double-band Muzzle in glass-filled Nylon

The Sigalsub double-band muzzle is made from glass-filled Nylon, a material that provides high mechanical strength while maintaining a lightweight, compact structure. The design ensures excellent durability and secure fastening during spearfishing and freediving use.

This muzzle is equipped with:

• Stainless steel line guide, to ensure durability and corrosion resistance in the marine environment;
• Two O-rings that improve watertight sealing, optimizing band safety and stability;
• Locking pin that ensures a firm and precise fit on the bands.

The muzzle fits all barrels with a 26 mm diameter, allowing the installation of two circular bands for a double-band setup, essential for increasing shooting power in spearfishing.

Available in black, this muzzle is designed to deliver an important combination of lightness, functionality, and reliability in the water, essential for freedivers and spearfishers.

Double Band Muzzle Sigalsub in Glass-Filled Nylon

The Sigalsub double band muzzle is made of glass-filled Nylon, a material that provides high mechanical strength while keeping weight extremely low. This combination ensures lightness and durability, essential for proper performance in spearfishing and freediving.

Designed to accommodate two circular bands, the muzzle is compact and suitable for barrels with a 26 mm diameter, allowing versatile and precise installation.

Technical Features

• Stainless steel line guide to ensure durability and corrosion resistance in the marine environment
• Double O-ring to improve watertight sealing, ensuring stability during underwater use
• Locking pin to keep the muzzle securely anchored to the barrel
• Green color, useful for identification and spearfishing-specific aesthetics

The careful selection of materials and technical details makes this muzzle ideal for anyone who needs a reliable, lightweight, and practical component to assemble on the barrels of their spearguns.

Ermes Formula Inverter Muzzle for spearguns

Formula Inverter is a lightweight and compact muzzle, specifically designed for freediving spearguns with 26.0 and 26.5 mm diameter barrels. Made entirely from 30% glass fiber reinforced nylon, it ensures the perfect balance between mechanical strength and light weight, essential for smooth and precise underwater tracking.

Technical features

• 30 mm diameter sliding pulleys for efficient, smooth power transfer.
• Protective groove designed to keep the pulleys from direct contact and wear, increasing long-term durability.
• Nylon material with 30% glass fiber, for an excellent combination of strength and light weight.
• Compatible with inverter systems mounted centrally on the underside of the muzzle.

Applications and compatibility

The Formula Inverter muzzle is designed to be mounted on spearguns with 26.0 and 26.5 mm diameter barrels, enabling an optimized setup for spearfishing and freediving. Its structure ensures smooth power transfer and balanced trim, improving control of the gear and shot accuracy.

Muzzle Head M4 for Aluminum and Carbon Spearguns

The closed muzzle Head M4 is specifically designed for setting up freediving spearguns with an aluminum or carbon barrel, ensuring precise and reliable in-line twin-band installation.

Technical Features

• Material: high-strength stainless steel, for optimal durability and mechanical resistance in the underwater environment
• Equipped with two hard plastic spacers, ensuring proper separation of the components and reducing material wear
• Line guide integrated into the muzzle, an essential component for guiding the line from the reel, ensuring smooth, precise line management
• Compatibility: fits barrels with a 26 mm internal diameter, ideal for spearguns with aluminum or carbon barrels

Benefits for Freediving Spearfishing

This muzzle is designed to optimize the efficiency and practicality of the speargun in a twin-band configuration, improving power transfer and swing control—essential factors for precise, high-performance freediving spearfishing.

Muzzle Head M4 Open/Close for Freediving and Spearfishing Spearguns

The Muzzle Head M4 Open/Close, manufactured by Meandros, is designed for setting up spearfishing spearguns with aluminum or carbon barrels. This component is essential for ensuring a reliable, functional installation of twin inline bands.

Technical Features

• Stainless steel construction for high mechanical strength and durability in the marine environment.
• Supplied with 2 hard plastic spacers to stabilize and maintain the correct position of the muzzle.
• Compatible with barrels with a 26 mm internal diameter, ideal for aluminum and carbon tubes.
• Designed to work in both open and closed configurations, adapting to different line and band loading requirements.
• Integrated line guide that allows the smooth, controlled passage of the shooting line coming from the reel, improving line management during tracking and shooting.

Benefits for Freedivers and Spearfishermen

The Head M4 muzzle offers a technical solution that combines strength and efficiency in transmitting band power. The use of stainless steel ensures long-lasting, corrosion-free performance, while the integrated plastic spacer improves structural stability. The open/close system makes speargun assembly and in-water maintenance easier.

Thanks to the built-in line guide, the shooting line runs smoothly without friction or obstruction, optimizing shot responsiveness and accuracy—key factors in spearfishing and freediving.

Muzzle Head Wood Open/Close for Wooden Spearguns

The Muzzle Head Wood Open/Close, manufactured by Meandros, is designed specifically for rigging wooden spearguns, ideal for spearfishing.

Made from high-quality stainless steel, it ensures mechanical strength and durability in marine environments. The body is supplied with two hard plastic spacers, ensuring stability and optimal fastening thanks to the three included self-tapping screws.

Technical Features

• Material: corrosion-resistant Stainless Steel
• Weight: 60 grams, for perfect trim balance
• Configuration: suitable for inline double bands, an essential component for power transfer during the shot
• Removable bridge: allows the muzzle to be used in both open and closed mode, adapting to different spearfishing needs
• Integrated line guide: guides the line from the reel, ensuring smoothness and precision when tracking

Benefits

The integrated line guide improves the efficiency of energy transfer from the band to the line, reducing friction and wear. The modular design provided by the removable bridge offers versatility in use, allowing you to customize the speargun configuration for different spearfishing techniques.

Thanks to its balance and light weight, the muzzle contributes to optimal trim and precise tracking, key factors for control and smoothness during the dive and shot.

Muzzle Head X4 Open/Close Meandros

The Muzzle Head X4 Open/Close by Meandros is specifically designed for setting up spearguns with aluminum or carbon barrels. This essential component fits barrels with a 26 mm internal diameter, ensuring precise and secure installation.

Materials and Construction

Made from high-quality stainless steel to ensure mechanical strength and durability in the marine environment, the muzzle includes four hard plastic spacers that keep the bands properly aligned, preventing premature wear.

Technical Features

The integrated line guide is a key element of the muzzle, designed to guide the line from the reel smoothly and with control. This feature improves handling and shot accuracy, making retrieval easier and increasing operational efficiency while freediving.

Compatibility

• Suitable for spearguns with aluminum or carbon barrels
• Compatible with barrels with a 26 mm internal diameter
• Configuration for mounting four in-line bands (Head M4 Open)

The muzzle structure is engineered to optimize power transfer from the bands, ensuring stable, responsive power distribution during the shot.

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.