The Faxon Firearms Gunner is a 12.5-inch AR-15 barrel chambered for .338 ARC, finished in Black Nitride over 416-R stainless. Its Gunner profile combines the durability of a government contour with the weight savings of a pencil-style barrel to improve handling and reduce fatigue during extended use. The barrel is button rifled with a 1:8 (5R) twist and uses a pistol-length gas system sized for a .750 gas block. A threaded muzzle and 11-degree target crown help preserve consistent muzzle exit geometry.
Key Specifications
- Chambering is .338 ARC.
- Barrel length measures 12.5 inches.
- Rifling is button rifled with a 1:8 twist rate (5R).
- The barrel profile is the Gunner profile.
- Finish is Black Nitride over 416-R stainless.
- Gas system is pistol-length with a .750 inch gas block size.
- The muzzle is threaded and features an 11-degree target crown.
- Fitment is for AR-15 platforms.
- Sights are not included.
Designed to deliver a compact, high-performance option for .338 ARC builds, the Faxon Gunner 12.5-inch barrel balances handling, durability, and accuracy in a short package. Its stainless construction with a Black Nitride finish, robust button rifling and a pistol-length gas system make it well suited for precision-focused AR-15 projects, hunting setups, or any build that requires a compact barrel without sacrificing consistent performance.
