Button Rifling OCTO Fitted Carbon Fiber Barrel

Button Rifling OCTO Fitted Carbon Fiber Barrel

$1,799.99
Built to Order – Fitted to Your Action – Estimated Lead Time 6 Weeks

Every Helix 6 Precision OCTO Button Rifled Fitted Barrel is custom fitted to your specific action. Fits most modern bolt-action receivers.

Barrel Fitting Included
The price includes fitting the barrel to your action at no additional charge.
Timed OCTO Thread Protector Included
A timed OCTO thread protector is included with your fitted barrel.
Action Required for Fitting
After checkout, we will contact you with a prepaid shipping label and instructions for sending your action to us.

The estimated 6 week lead time begins once your action is received at Helix 6 Precision.

Questions? Contact us at info@helix6precision.com .

Current Stock:
Adding to cart… The item has been added
Description

Helix OCTO – Octagonal Carbon Technology Optimized – Button Rifled Fitted Carbon Fiber Barrel

The Helix OCTO Fitted Barrel is engineered for precision rifle builders and shooters seeking exceptional accuracy, stiffness, and thermal stability in a production-ready barrel system.

Each barrel features a match-grade 416R stainless steel core, precision button-rifled and hand-lapped for consistent bore dimensions and accuracy. The core is integrated with Helix 6 Precision’s proprietary high-carbon, low-resin carbon fiber process, providing an optimized balance of stiffness, strength, thermal stability, and weight reduction.

The OCTO geometry is engineered directly into the barrel using flat surfaces and reinforced corners to increase stiffness and reduce deflection compared to traditional round profiles. The structural design also allows for more intentional carbon fiber orientation, helping maintain stability as barrel temperatures change during sustained firing.

Each Helix 6 OCTO barrel carries a ½ MOA accuracy guarantee when used with match-grade ammunition, quality components, and by a capable shooter.

Key Features

  • Fitted OCTO Carbon Fiber Barrel System – Precision fitted for most modern precision rifle actions.
  • OCTO Octagonal Geometry – Flat surfaces and reinforced corners increase stiffness and reduce deflection compared to traditional round profiles.
  • Precision Button Rifling – Match-grade 416R stainless steel core is button-rifled and hand-lapped for exceptional consistency and accuracy.
  • High-Carbon, Low-Resin Construction – Provides an optimized balance of rigidity, strength, lightweight construction, and thermal stability.
  • Minimal POI Shift – Proprietary carbon fiber construction helps maintain point of impact during extended firing strings and changing barrel temperatures.
  • ½ MOA Accuracy Guarantee – When used with match-grade ammunition, quality components, and by a capable shooter.
  • Precision Chambered & Threaded – Chambered and threaded to match-grade tolerances.
  • 5/8-24 Muzzle Threading – Compatible with a wide range of suppressors and muzzle devices.
  • Flexible Barrel Length – Available in any finished length 26" or shorter.
  • Drill & Tap Compatible – The composite structure can be drilled and tapped to accommodate sight installation.

Specifications

Cartridge Twist
22 Creedmoor 1:8
6mm ARC 1:8
6mm Creedmoor 1:8
25 Creedmoor 1:7
6.5 Creedmoor 1:8
6.5 PRC 1:8
7mm Backcountry 1:8
7mm PRC 1:8
.308 Win 1:8
.308 Win 1:10
300 PRC 1:8

Barrel Length: Available in any finished length 26" or shorter

Muzzle Thread: 5/8-24

Government Export Restriction

This item may be regulated for export by the U.S. Department of State or U.S. Department of Commerce. Please see our Export Policy prior to placing your order.

Government Restriction

By adding to cart, I understand and agree to the Domestic Restricted Product Policy and certify that I will comply with applicable federal, state and local laws and regulations.