Engineered for serious 300 BLK builders who demand precision in a compact package, the Faxon Match Series 7.5″ GUNNER barrel delivers exceptional stability and reliability for AR-15 pistols and short-barreled configurations. This premium 416-R stainless steel barrel features a fast 1:5 twist rate specifically optimized to stabilize heavier subsonic projectiles, making it an ideal choice for suppressed builds where consistent performance matters most.
Key Features
- Match-grade 5R button rifling reduces fouling and improves accuracy by minimizing bullet jacket deformation
- GUNNER profile provides a lightweight yet durable design that balances handling and heat dissipation
- Salt bath nitride finish offers superior corrosion resistance and easy maintenance while maintaining a low-glare surface
- Nickel Teflon (NP3) coated extension ensures smooth feeding and long-term durability in high-use environments
- Pistol-length gas system delivers reliable cycling with a wide range of 300 BLK ammunition
Technical Specifications
- Barrel Length: 7.5 inches
- Caliber: 300 AAC Blackout
- Twist Rate: 1:5 Right Hand
- Material: 416-R Stainless Steel
- Finish: Nitride / Melonite (QPQ)
- Barrel Extension: Nickel Teflon (NP3)
- Gas System: Pistol Length
- Gas Block Journal: 0.75 inches
- Muzzle Thread: 5/8×24
- Weight: 14.24 ounces
- Platform: AR-15
Why Choose This Barrel
The 1:5 twist rate excels with heavy subsonic loads commonly used in suppressed 300 BLK setups, providing superior gyroscopic stability compared to slower twists. The GUNNER profile reduces overall weight without sacrificing strength, helping shooters maintain maneuverability in tactical or home-defense scenarios. Nitride treatment inside and out protects against wear and corrosion, while the precision-machined chamber and 11-degree target crown support consistent accuracy. This barrel addresses common pain points like poor subsonic performance in short barrels and excessive fouling by delivering reliable function across subsonic and supersonic ammunition.
Built to exacting standards with magnetic particle inspection and air-gauged bores, this Faxon Match Series barrel offers the quality and repeatability serious enthusiasts expect from a premium American-made component.




