MannySub

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.

Max Rubber Bands for Spearfishing

Max Rubber bands are made from high-quality natural latex, selected to ensure optimal elasticity and mechanical strength during spearfishing and freediving. The DIP dipping production technology allows the use of pure amber latex in the core, ensuring strength and durability. The outer surface is protected by a black anti-UV layer, designed to preserve the elastic properties even under prolonged sun exposure.

Technical specifications

• Material: pure natural latex
• Production process: DIP dipping
• Outer coating: black anti-UV layer
• Available diameters: 16 mm and 18 mm
• Price indicated per centimeter

Features and benefits

The combination of pure amber latex with anti-UV protection ensures high efficiency and reliability during loading. Consistent elasticity provides uniform tension, ensuring accuracy and power when shooting spearguns. Attention to detail in material selection and the production process improves durability while maintaining lightness and responsiveness.

Single Roller Power Head Muzzle Kit - Ceramic

The Premium roller conversion kit Single Roller Power Head - Ceramic, made in Australia, is designed for installation on spearguns with a removable cylindrical muzzle. This system significantly improves power and accuracy in spearfishing, delivering greater penetration and range with superior control.

Main Technical Features

• High-speed ceramic bearings: four bearings (two per pulley) made from ceramic material with encapsulated balls, designed to reduce friction and increase power-transfer efficiency. Resistant to sand and saltwater, virtually maintenance-free. They are covered by a lifetime warranty.
• High-performance small-ID bands: 15, 16, or 18 mm bands with a 1 mm inner-diameter hole, offering high elastic performance to optimize pretension and maximize shaft thrust.
• Wraparound carbon fiber side plates: 2 mm thick, ultra-lightweight and strong, fully protecting the pulleys and bearings from impacts while improving the kit’s mechanical strength without adding weight.
• Molded one-piece body: solid and lightweight structure, designed for superior durability and balanced trim when swinging the speargun.
• Integrated line guide: allows the muzzle shock absorber to be secured and accommodates lines up to 2.5 mm thick, for versatile and safe installation.
• Complete with three types of Dyneema line: to choose the most effective setup based on your spearfishing needs.
• Rocker tie and barrel adapter: available for diameters from 24.5 to 26.5 mm, for compatibility with various speargun models.

Technical and Functional Benefits

The Roller Speargun system eliminates the recoil typical of traditional muzzles and uses 100% of the barrel length to propel the shaft, increasing power without increasing the freediver’s effort. By optimizing the ratio between band stretch and shaft weight, the kit generates more effective thrust, improving accuracy, shaft penetration, and handling of the speargun while freediving.

The lightness of carbon fiber and the low mechanical resistance of the ceramic bearings contribute to superior smoothness and responsiveness when shooting. Its simple construction makes assembly easy and ensures long-lasting reliability over time.

Compatibility and Usage Tips

• The kit is recommended for spearguns from 70 to 110 cm in length, but it can also be used effectively on 120 to 130 cm spearguns by installing 16 or 18 mm bands.
• Compatible with most Euro and South African spearguns with a removable cylindrical muzzle.
• Assembly instructions included to ensure correct and safe installation.

Double Roller Power Head Muzzle Kit - Glass

The Double Roller Power Head - Glass conversion kit, made in Australia, is designed for those looking for a precise and functional double Roller Speargun Muzzle for freediving and spearfishing spearguns.

Design and Construction

The Muzzle features an innovative system with inline pulleys, characterized by different diameters: the front pulley is larger than the rear one. This solution prevents the Bands from overlapping and allows for compact wraparound along the speargun barrel, reducing bulk and hydrodynamic drag. The result is smoother, more controlled tracking during the shot phase.

Technical Components

• Robust main body, molded construction
• 4 pulleys with glass bearings for optimal smoothness
• Ultra-light carbon fiber side plates to reduce overall weight
• Integrated line guide, suitable for lines up to 3.2 mm thick
• Three types of Dyneema line included in the kit
• Barrel adapter available for diameters from 24.5 to 26.5 mm
• Bands available in 14 and 16 mm diameters
• Rocker linkage and detailed instructions for simple, correct assembly

Functionality

The integrated anchor point allows attachment of the Muzzle bungee. The dual line guide allows the shaft to be secured to the Muzzle, with the shooting line positionable on either the right or left side, offering greater flexibility in setups.

Configurations and Compatibility

• 2 pairs of 14 mm Bands to drive 8.0 mm shafts at high speed
• 2 pairs of 16 mm Bands for 8.5 mm shafts on 100 to 140 cm spearguns, delivering high speed and power
• Supports the use of lightweight 7.5 mm shafts with reduced pretensioning and 14 mm Bands

These options allow the kit to be adapted to the specific needs of the freediver or spearfisher, optimizing speargun thrust and accuracy.

Technical Advantages

• Minimized bulk thanks to the compact design of the inline pulleys
• Extremely low friction between the Bands, increasing propulsion efficiency
• Lightweight construction ensured by carbon fiber and the fiberglass body
• High mechanical strength and component durability
• Easy assembly and maintenance ensured by the illustrated instructions

Adapter compatible with Mannysub Roller Power Head muzzles

This adapter is designed to be compatible with all Mannysub Roller Power Head muzzles. It allows Roller Power Head muzzles to be mounted on any speargun equipped with a cylindrical muzzle fitting, ensuring a secure and stable connection.

Technical specifications

• Available in 5 models with outer diameters of: 24.5 mm, 25.0 mm, 25.5 mm, 26.0 mm, and 26.5 mm
• Suitable for barrels with a standard cylindrical fitting

Applications and compatibility

The adapter is ideal for anyone looking for a technical solution to adapt Mannysub Roller Power Head muzzles to spearfishing spearguns with a cylindrical mount, while maintaining maximum mounting efficiency and accuracy when tracking the speargun.

Double Roller Speargun Muzzle Kit Power Head - Ceramic

The double Roller Speargun conversion kit in the Premium version is designed for installation on spearguns, ensuring a reliable, precise, and powerful system.

Main Technical Features

• Ceramic bearings with high smoothness (8 total, 2 per pulley), offered with a lifetime warranty for smoother rotation and improved corrosion resistance.
• High-performance Bands with a 1 mm diameter bore, optimized to transfer power directly to the shaft with minimal energy loss.
• Wraparound side plates made from 2 mm thick carbon fiber, effectively protecting pulleys and bearings from impacts and wear without increasing overall weight.

Design and Functionality

The in-line pulley layout features a slim, lightweight profile, reducing bulk and hydrodynamic drag compared to traditional systems with side-by-side or staggered pulleys.

The difference in diameter between the front pulley (larger) and rear pulley (smaller) prevents the Bands from overlapping, improving thrust transmission efficiency and smoothness of movement.

Kit Components

• Durable stamped-steel Muzzle body
• Four pulleys with ceramic bearings
• Ultra-light carbon fiber side plates
• Integrated line guide to facilitate shock absorber attachment or use with lines up to 3.2 mm thick
• Three types of Dyneema line for different configurations
• Adjustable barrel adapter from 24.5 to 26.5 mm
• Bands with 14 mm or 15 mm small bore
• Rocker wishbone and detailed assembly instructions with explanatory images

Applications and Compatibility

The Muzzle is designed for spearfishing large pelagics and bottom fish that require high power and extended range. It is compatible with any European or South African speargun equipped with a removable cylindrical Muzzle, offering a simple, immediate solution for conversion to double Roller Speargun.

The integrated double line guide allows the shooting line to be configured on either the right or left side, increasing operational versatility.

Performance

The Mannysub double Roller Speargun system, using pairs of 14 or 15 mm small-bore Bands, can launch shafts up to 8.5 mm in diameter at high speed, while keeping recoil low and making accurate tracking easier.

This configuration is particularly suited to spearfishers who need powerful, reliable tools optimized for spearfishing in marine environments.