Faxon Firearms Match Series 300 Blackout 9" 1:5 Twist Gunner Profile AR-15 Barrel

The Faxon Firearms Match Series 9" 300 Blackout Gunner Profile barrel is a premium AR-15 component purpose-built for compact and suppressed 300 BLK builds. Machined from 416R stainless steel with 5R button rifling and a fast 1:5 twist, this barrel is optimized to stabilize the full spectrum of 300 Blackout projectiles - from heavy subsonic rounds to supersonic loads.

The Gunner profile combines the government-contour diameter at the chamber with a tapered shank toward the muzzle, giving shooters an excellent balance of rigidity, heat handling, and reduced front-end weight - ideal for pistol and short-barrel configurations. The 9" barrel is matched to a pistol-length gas system, the standard dwell for 300 BLK, and threads 5/8x24 at the muzzle for suppressor and device fitment. The M4 barrel extension carries an NP3 nickel-Teflon coating for smooth, reliable bolt-lug engagement. The bore and exterior are finished in QPQ black nitride for corrosion resistance and extended service life.

Manufactured in-house in the USA, this Faxon barrel is engineered for match-grade accuracy and drops into any standard AR-15 upper receiver chambered in 300 Blackout.