Carbon fiber fish-barrel harpoon gun custom factory

High-Precision Carbon Fiber Speargun Barrels & Custom Spearguns – Direct from Professional Factory

As a leading global manufacturer of carbon fiber composites, we specialize in providing lightweight, high-strength customized solutions for underwater hunting and sport fishing.

Our product line includes carbon fiber speargun barrels and fully custom spearguns, combining advanced craftsmanship with precision design to meet diverse needs from recreational diving to professional competitions.

Core Product Advantages

Material Innovation

Crafted from carbon fiber (3K/UD/twill options available), with a density 1/3 that of traditional aluminum barrels but 3x higher strength. Resistant to seawater corrosion and impact, ensuring long-term stability in deep-sea high-pressure environments.
Precision Performance

The barrel features a polished, smooth interior surface that minimizes friction, combined with sleek, optimized shapes—such as designs inspired by cuttlefish bones—to improve stability underwater and boost shooting precision.

Modular Customization: Supports full-range customization of 25-26.5mm diameter & 80-140cm length, adapting to different hunting scenarios (coral reefs/blue water/large prey).

Ergonomic Design

Adjustable Grips: Anti-slip handles with ergonomic contours reduce fatigue during long dives.

Safety Mechanisms: with anti-misfire safety locks.

Eco-Friendliness & Sustainability

Carbon fiber materials are recyclable, with production energy consumption lower than metal processing, supporting green fishing.

Emphasizes of our customization service.

End-to-End Collaboration: From CAD modeling to sample testing, offering 1-on-1 engineering support to meet special functional needs (e.g., integrating automatic fishing line retraction systems).

Surface Finishes: Supports matte/high-gloss paint, laser-engraved logos for personalized appearances.

We have standard molds available in stock, so small-batch orders typically ship within 7 to 15 days.

Application Scenarios

Recreational Diving: Lightweight design suits beginners, improving underwater maneuverability.

Competitive Sports: High-precision barrels enable long-distance accurate shooting, compliant with international competition standards.

Professional Hunting: High-strength carbon fiber structures withstand multi-rubber band tension, handling large prey like sharks and tuna.

Why Choose Us?

Industry Certifications: ISO 9001 certified factory, strictly adhering to ASTM/EN standards.

Global Clients: Serving high-end brands (e.g., C4 Carbon, Pathos) with annual production capacity exceeding 100,000 units.

After-Sales Guarantee: 5-year structural warranty, lifetime maintenance support.

Contact us now for a free customization plan and sample quotation!

Product Details

Product introduction diagram of carbon fiber harpoon tube

Introduction-diagram-of-carbon-fiber-fish-gun-barrel

Core Product Advantages

1. Material Innovation & Technical Parameters
Crafted from T300/T700/T800 carbon fiber (customizable fiber grades) with proprietary resin systems, achieving:

Density: 1.6-1.8g/cm³ (1/4 of steel, 1/3 of aluminum)
Tensile Strength: 4,900-5,490 MPa (5x stronger than marine-grade aluminum)

Elastic Modulus: 230-250 GPa (excellent vibration damping for stable shots)
Salt Spray Resistance: Passed 1,000+ hours ASTM B117 test (ideal for tropical seawater environments)

2. Precision Performance with Customizable Parameters

Carbon Fiber Speargun Barrels

Parameter	Standard Range	Custom Options	Application Impact
Diameter	25mm / 26mm / 26.5mm	±0.2mm tolerance (matching major brand specs)	Smaller diameters for stealth; larger for high-power setups
Length	80cm / 100cm / 120cm / 140cm	5cm increments (70-150cm)	Shorter: coral reef agility; Longer: blue water range
Wall Thickness	1.8mm / 2.0mm / 2.5mm	Customized per pressure calculation	Thicker walls for >200 bar hydraulic systems
Weave Pattern	3K Twill / UD Unidirectional / 45° 斜纹	Hybrid layups (e.g., UD core + twill outer)	UD for max strength; Twill for impact resistance
Surface Finish	Matte / Gloss / Textured	Custom color matching (Pantone® certified)	Textured for better grip in wet conditions
Rail System	M-Lok / Picatinny	Integrated mounting slots for lasers/sights	Modular accessory compatibility

Fully Custom Spearguns

Component	Standard Configuration	Customization Options	Technical Specs
Trigger System	Bleu tec Lycan (316 stainless steel)	Pathos Ermes / custom CNC-machined titanium	Trigger pull: 3-5kg (adjustable via tension screws)
Power System	Double/Quad rubber bands	Hydraulic piston / composite spring rods	Max energy output: 80-200J (calibrated for 5-30m shots)
Grip Material	Molded EVA / Rubberized polymer	Custom CNC-machined aluminum / teak wood	Ergonomic angle: 15°-30° (right/left-handed versions)
Shaft Compatibility	6.5mm / 7mm stainless steel	Titanium nitride-coated / fluted shafts	Shaft length: 90-130cm (with quick-release muzzle)
Buoyancy Control	Neutral buoyancy (±50g)	Adjustable weights (100-500g integrated)	Optimized for 10-40m diving depths

3. Engineering Excellence

CNC-machined joints offer a precision tolerance of 0.01mm, ensuring a smooth, smooth connection between the barrel and the handle.
Aerodynamic Profiling: CFD-optimized contours reduce water resistance by 18% compared to standard designs
Modular Design: Quick-disassembly structure (30 seconds) for easy maintenance and travel

Customization Process & Lead Times

Consultation: 1-on-1 engineering review via CAD/3D modeling (24-hour response)
Material Selection: Choice of fiber/resin systems (e.g., fire-retardant for tropical storage)
Testing: Hydrostatic pressure tests (300 bar), impact resistance (IK08), and saltwater immersion trials
Delivery:
- Standard orders: 7-10 days (from 50 units)
- Fully custom: 15-25 days (including prototype approval)

Application Scenarios by Specs

Hunting Environment	Recommended Barrel Length	Trigger Type	Power System	Target Prey
Coral Reef (5-15m)	80-100cm	Lightweight polymer	Double rubber bands	Snapper, Grouper
Blue Water (15-30m)	120-140cm	Stainless steel Lycan	Quad rubber bands	Tuna, Wahoo
Big Game (>30m)	140cm + custom thickness	Titanium trigger	Hydraulic piston	Marlin, Shark

Why Choose Us?

ISO 13779 Certified: Specialized in marine-grade composite manufacturing
R&D Team: 15+ engineers with 10+ years in speargun aerodynamics
Minimum Order Quantity: 10 units for custom designs (industry-low MOQ)

Contact us to download the Technical Spec Sheet or request a custom parameter quotation – optimize your spearfishing gear for performance, precision, and durability.