Neptonics

Tuna Bungee: Pure Latex Bungee for Spearfishing and Bluewater Hunting

The Tuna Bungee is a bungee made with a pure latex compound that is highly resistant to UV rays, ideal for spearfishing and bluewater hunting. Thanks to the quality of the material, it delivers extremely high elasticity and superior fish-fighting power, essential when handling large pelagic gamefish.

Technical Features

• Stretch: up to 4 times its resting length, with a 530 kg internal safety line that limits maximum tension
• Rubber diameter: 14.0 mm, ensuring an optimal balance between elasticity and ease of fish control
• End materials: AISI 316 stainless steel with heavy duty swivels to eliminate twist and special shackles for quick, secure connections
• Available lengths: 1.5, 3.0, 5.0, 10 and 15 meters, to suit different spearfishing needs

Benefits and Applications

This bungee is designed for battles with large pelagic fish such as yellowfin tuna, marlin, big amberjack, GT and large wahoo. The special latex compound allows progressive stretch with efficient elastic recovery, helping to quickly tire the fish without failure, a crucial factor in spearfishing.

The construction includes high-strength stainless steel components to ensure durability and reliability in the marine environment. The use of heavy duty swivels eliminates any twisting during line handling, improving smooth operation and functionality while managing the fish.

Usage Tips

• Recommended for use with spearfishing-specific floatlines for better overall system efficiency
• Suitable for spearfishers specialized in targeting large pelagic fish in deep water

Neptonics 316 Stainless Steel D-Shackle

The Neptonics D-Shackle is made from 316 stainless steel, a corrosion-resistant material especially well suited to the marine environment. These shackles are ideal for connecting floatlines with adapters and clips, ensuring a reliable, long-lasting connection for freediving and spearfishing activities.

Technical Features

• Breaking load: 545 kg, providing high mechanical strength even under significant stress.
• Dimensions: 4 cm length, sized for an optimal balance between compactness and strength.
• Pin design: the pin is secured to prevent accidental loss during use, ensuring safety and practicality.

Applications and Benefits

Thanks to their 316 stainless steel construction, these shackles resist corrosion caused by saltwater, maintaining their integrity and functionality over time. Their lightweight design and mechanical efficiency make them essential components for rigging spearfishing gear, ensuring fast, solid, and secure connections between floatlines and accessories.

Using these D-Shackles helps improve the smooth handling of in-water operations, reducing the risk of unwanted snags and making connected components easier to manage.

Floatline Adapter for Spearfishing

Floatline Adapter is an essential component specifically designed for bluewater hunting, built to provide safety and practicality when using a speargun.

Materials and Construction

The core of the adapter is made with a Spectra core, a material with a 630 kg breaking strength that ensures high mechanical resistance and reliability in the water. The plastic coating protects the core, preventing knots and tangles from forming, while also protecting your hands from friction or cuts caused by the line running quickly.

Technical Functionality

The system allows the shaft to be quickly released from the speargun via a stainless steel Snap Swivel, essential for safety in spearfishing. This solution prevents the diver from losing the entire speargun in the event of large fish that manage to drag it away, improving control and handling of spearfishing gear.

Additional Features

• Color: Blue, easy to spot in the marine environment
• Stainless steel Snap Swivel for corrosion resistance and easy release
• Design that prevents tangles and promotes smooth handling during the dive

The Floatline Adapter is therefore an essential technical component for spearfishing, offering reliability, safety, and practicality when managing the line and speargun.

Neptonics Bungee for Spearfishing and Bluewater Hunting

Neptonics Bungee is a breakaway Band designed specifically for bluewater hunting and targeting large pelagic fish, essential for Freediving and deep-water spearfishing.

Technical Features

• Band capable of stretching up to 3 times its length, providing excellent elasticity and shock absorption.
• Reduces the risk of the shaft pulling out of the fish during the fight, helping maintain control throughout the underwater battle.
• Used in reel-free systems, preferred for bluewater hunting because it avoids complications and risks related to bulk and gear safety.
• Available in two lengths: 1.8 meters or 3.0 meters, to suit different technical requirements and spearfishing situations.

Quick Breakaway System with Stainless Steel Clips

The Bungee with Clips allows quick and reliable shaft release, essential to prevent losing the speargun if the fish manages to break free. The mechanism is based on:

• Clips made of stainless steel, corrosion-resistant in marine environments and easy to release.
• A mechanism that allows the shaft to detach immediately with a simple movement, without compromising safety during the recovery phase.

Applications and Benefits

Ideal for spearfishers specializing in targeting large pelagic fish, this system offers:

• High efficiency in force transfer between Band and shaft.
• Greater safety during breakaway and gear recovery operations.
• Practicality and ease of use during extended bluewater hunting sessions.

Floatline Assembly 2 for Spearfishing

Floatline Assembly 2 is a specific component for completing the floatline used in spearfishing.

The set includes a plug and clip made from stainless steel, with welded rings to ensure high mechanical strength and durability even in marine environments.

The design is optimized for use with tubes with an internal diameter of 6.5 millimeters, ensuring a stable and secure connection during in-water use.

Technical Features

• Material: high-strength stainless steel
• Included components: plug and clip with welded rings
• Compatibility: tubes with 6.5 mm internal diameter
• Function: completion and attachment of the floatline for spearfishing

Floatline Assembly 1 for Spearfishing

Floatline Assembly 1 is a specific component for completing the floatline used in bluewater spearfishing. This kit includes a plug and a swivel designed to ensure reliability and durability during use in the water.

Technical Features

• Material: high-strength stainless steel, ideal for prolonged contact with saltwater
• Construction: welded rings to ensure superior mechanical strength at critical connection points
• Compatibility: designed for tubing with an internal diameter of 6.5 millimeters, ensuring a stable and precise fit

Functionality and Benefits

The swivel helps prevent the floatline from twisting during spearfishing, improving line management smoothness and safety. The plug securely closes the tubing, ensuring sealing and structural continuity of the floatline.

Applications

• Completes the floatline setup for spearfishing
• Suitable for tubing with a 6.5 mm internal diameter, commonly used in spearfishing equipment
• Essential for line control and management during the dive

Bluewater Pro Floatline - Neptonics

The Bluewater Pro Floatline by Neptonics is the benchmark floatline for bluewater spearfishing and demanding environments. Designed and assembled entirely in the Neptonics workshop, it represents the highest standard available on the market for those who refuse to compromise on reliability and strength.

Superior construction and strength

What sets the Bluewater Pro Floatline apart from the competition is its 100% Spectra internal core, fully back-spliced. This construction technology ensures a rated strength of 1400 lb (approximately 635 kg), an exceptional value that makes it extremely reliable even with large pelagic fish.

• 100% Spectra core with full back splice
• 1400 lb rated strength (~635 kg)
• Lines from other brands are only crimped: they break at the worst possible moment
• The Bluewater Pro is the only floatline on the market with this construction combination

100% Neptonics production

Every component of the Bluewater Pro Floatline is made and completed entirely in the Neptonics workshop. No component is purchased from third parties and simply assembled: from machining the metal parts to welding, from back-splicing to final assembly and finishing, every step is directly controlled by Neptonics.

• In-house machining of the metal parts
• Welding performed in the Neptonics workshop
• Back-splicing carried out in-house
• Final assembly and finishing under the manufacturer’s direct control

Function and use in the water

The Bluewater Pro Floatline is the essential connection between the speargun and the spearfishing float. Once the fish is speared, the line works together with the float to tire out the fish and allow the diver to return to the surface to breathe, without losing contact with the fish.

• Directly connects the speargun to the float
• Allows the fish to fight against the line and float, progressively tiring it out
• Leaves the diver free to return to the surface to breathe safely
• Marks the position of the fish even when it hides on the bottom

Safety and visibility in the water

The presence of a floatline and float significantly increases the diver’s visibility on the surface, making them easy to spot both for passing boats and for their own support boat. This is essential for spearfishing safety, especially in current or when multiple spearfishers are in the water at the same time.

• The float marks the diver’s position for boats in transit
• Makes it easier for the captain to track multiple divers at the same time
• Essential in case of current drift or a fish running offshore