Round Carbon Fiber Speargun Barrel

Price range: 56.00 $ through 73.00 $

ANT Composites manufactures round carbon fiber speargun barrels for spearfishing equipment, replacement barrels, and OEM speargun projects.

The barrel uses a continuous round carbon fiber tube as its main structure. Two low raised shoulders run along the top and form a shallow guide track for the spear shaft. This integrated design helps keep the shaft aligned without adding a separate external rail.

Standard and custom diameters, lengths, wall thicknesses, carbon finishes, and guide profiles are available.

MaterialCarbon fiber and epoxy resin
Standard inner diameter25 mm / 26 mm
Standard outer diameter28 mm / 30 mm / 31 mm
Wall thicknessCustom according to structure
Standard lengths85 cm, 90 cm, 95 cm, 100 cm, 105 cm, 110 cm, 115 cm, 120 cm, 130 cm, 140 cm
Barrel profileRound
Carbon weave3K 2×2 twill
Surface finishMatte or glossy
ColorBlack carbon; custom finish available
CustomizationDiameter, profile, length, rail and finish
Description
round carbon fiber speargun barrel

Key Features

  • Continuous round carbon fiber tube
  • Integrated full-length shaft guide
  • Lightweight with high bending stiffness
  • Good straightness and dimensional consistency
  • Suitable for saltwater equipment
  • Compatible with common handle and muzzle systems
  • Glossy or matte 3K carbon fiber finish
  • Custom diameter, length and wall thickness
  • CNC cutting and end finishing available
  • OEM manufacturing for speargun brands

Popular Size Options

Inner DiameterOuter DiameterTypical Use
25 mm28 mmLightweight barrel systems
25.4 mm30.5 mmCustom handle and muzzle systems
26 mm30 mmCommon speargun components
26 mm31 mmHigher-stiffness barrel designs

Compatibility should be confirmed before production. Small differences in inner diameter, guide height, and connection dimensions can affect assembly.


Available Lengths

Common barrel lengths include:

85 / 90 / 95 / 100 / 105 / 110 / 115 / 120 / 125 / 130 / 140 cm

We can also cut the barrel to a customer-specified length.

For OEM orders, please provide the required finished length for the round carbon fiber speargun barrel and confirm whether additional allowance is needed for machining or assembly.

Have a project in mind? Let's talk.


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    Frequently Asked Questions

    1. What is the most common round speargun barrel size?

    A 26 mm inner diameter with an outer diameter of approximately 30–31 mm is commonly used. The correct size depends on the handle and muzzle system.

    2. Is the shaft guide integrated into the barrel?

    Yes. The guide is formed by two raised shoulders molded into the carbon fiber barrel. It runs along the full length of the tube.

    3. Can you customize the guide profile?

    Yes. Guide width, height, groove depth, and overall profile can be adjusted according to the shaft and customer drawing.

    4. Can you provide matte and glossy surfaces?

    Yes. Both matte and glossy 3K twill carbon fiber finishes are available.

    5. Do you manufacture single replacement barrels?

    Our main service is intended for B2B and OEM orders. Sample quantities may be available for testing before batch production.