The Ballistic Advantage BABL300007F Performance Series 300 Blackout 10.30" Threaded Hanson Profile, Carbine Length with Low Pro Gas Block in Black QPQ 4150 Chrome Moly Vanadium Steel fits AR-15 platforms and delivers reliable accuracy and versatility for modern shooters. Built with a 1:7 twist and a compact 10.3" barrel length, this Hanson-profile barrel is optimized for subsonic and supersonic 300 AAC Blackout ammunition, pairing a pistol-length gas system with a Low Pro Gas Block to help reduce felt recoil and improve gas efficiency in a compact upper. The included threaded muzzle enables easy attachment of many common devices, while the QPQ corrosion-resistant finish protects against the elements in field and range use. Crafted from high-quality 4150 Chrome Moly Vanadium steel, the Black finish enhances durability without sacrificing performance, making it a robust choice for rifle builds that demand consistent cycling, precise follow-up shots, and reliable performance in diverse conditions. Ideal for hard-hitting AR-15 configurations, this Performance Series barrel supports a broad range of hunting, target shooting, and tactical applications where reliability and control are paramount.