The Faxon Match Series 12.5" Gunner Profile .338 ARC Barrel blends rugged reliability and precision performance in a compact format. Designed and manufactured 100% in-house at Faxon Firearms in Cincinnati, Ohio, this barrel combines the durability of the Gov’t contour with the weight savings of a Pencil barrel for unmatched balance and handling.

Constructed from 416R stainless steel with a 1:8 twist optimized for stabilizing a wide range of .338 ARC projectiles, the barrel is stress-relieved, air-gauge tested, and finished in Black Nitride for enhanced corrosion resistance and longevity. Each barrel is individually headspaced using precision PTG gauges and Magnetic Particle Inspected (MPI) to ensure flawless performance.

Faxon recommends pairing this barrel with Duramag .400 Legend magazines for best feeding reliability and notes that some setups may require minor feed ramp tuning, especially with Hornady Sub-X ammunition.

Key Benefits

• Gunner Profile: Combines durability and lightweight balance for optimal control.
• 416R Stainless Steel: Match-grade material for precision and long service life.
• 1:8 Twist Rate: Ideal for stabilizing both subsonic and supersonic .338 ARC bullets.
• Black Nitride Finish: Improves corrosion resistance and enhances wear life.
• Pistol-Length Gas System: Reliable cycling for short-barreled configurations.
• 5/8x24 Muzzle Threads: Compatible with a wide range of muzzle devices and suppressors.
• Individually Headspaced & MPI Tested: Ensures consistent accuracy and reliability.
• Made in Cincinnati, Ohio: 100% manufactured in-house by Faxon Firearms.

Specifications

Important Product Note

Some customers may need to adjust their upper receiver feed ramps to ensure reliable feeding, particularly when using Hornady Sub-X ammunition. For best performance, Faxon recommends pairing this barrel with Duramag magazines designed for 400 Legend. Always ensure compatibility with your specific firearm configuration and consult a qualified gunsmith if needed. Faxon Firearms is not liable for damage or performance issues caused by improper installation or use.

Frequently Asked Questions

Overview: 12.5" Match Series Gunner Profile .338 ARC Barrel

The Faxon Match Series 12.5" .338 ARC Barrel delivers compact precision and rugged durability for AR-15 pistol builds or lightweight carbines. Featuring 416R stainless steel construction, 1:8 twist rifling, and Nitride finish, it’s engineered for shooters demanding exceptional accuracy and reliability in a compact platform.

Faxon’s Gunner Profile brings perfect balance between strength and maneuverability—ready for the field, the range, or duty use.