This 338 ARC chambered 8.5-inch barrel is machined from 416R Stainless Steel with a QPQ finish. Our Premium Black Series Barrels feature a Nickel Boron Coated Extended 350-Legend Feed Ramp Extension.

Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits.

All NFA/ATF Rules Apply

You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is prohibited, except when permanently attaching a muzzle device extending the length to 16 inches

.338 ARC Barrel – 1:5 Twist

Our .338 ARC barrel with a 1:5 twist rate is optimized for shooters seeking maximum stability and accuracy when running heavier projectiles.

The 1:5 twist is a common choice in the .338 ARC space. What sets ours apart is the level of precision in our manufacturing process. Each barrel is lapped for enhanced consistency and finish, supporting long-term performance.

This twist rate is especially effective in shorter barrels where velocity loss can affect bullet stability, particularly with subsonic loads. The faster twist helps counteract these effects, delivering consistent accuracy and control.

Other features include the use of a 350 Legend feed ramp extension for reliable cycling across various setups.

The 1:5 twist is purpose-built for shorter barrels and subsonic loads, where faster spin is needed to stabilize heavy projectiles at lower velocities.