The One Horse Pistol Gas Barrel delivers exceptional performance for .300 Blackout builds with its 10.5-inch length and precision 1:7 twist rate optimized for both subsonic and supersonic ammunition.One Horse Pistol Gas Barrel - SKU: OH-BR06.300 Blackout chamber with 1:7 twist rate10.5-inch barrel length with pistol-length gas system5/8x24 muzzle threading for suppressor compatibilityPremium nitride finish for enhanced corrosion resistanceMil-Spec construction standardsBlack finish for tactical applicationsEngineered for smooth cycling and reduced recoil this barrel provides the perfect foundation for high-performance AR15 pistols and SBRs ideal for tactical operations hunting and suppressed shooting applications.