TacFire AR Barrel Features The TacFire AR Barrel is machined from steel and finished with a black nitride coating that improves resistance to heat corrosion and the day to day wear of range use. A 1:8 twist rate stabilizes a broad range of .300 AAC Blackout bullet weights from lighter supersonic loads up through heavier subsonic projectiles. At 10.5 inches the barrel is sized for compact AR pistol builds or short barreled rifles where maneuverability is a priority. The barrel ships bare with no sights installed giving a builder full control over how the upper is configured. Because it is chambered specifically in .300 AAC Blackout this barrel pairs well with a dedicated bolt carrier group and magazine setup built around that cartridge letting a shooter take full advantage of the round s flexibility between supersonic and subsonic loads. Steel construction provides the strength and heat tolerance needed for repeated strings of fire without excessive wear. Whether completing a first build or replacing a worn factory barrel this TacFire barrel offers a dependable path to a functioning .300 AAC Blackout upper. Straightforward and well made it is a practical option for AR builders shopping at GrabAGun. TacFire AR Barrel Specifications Manufacturer: TacFire Model: AR Barrel Caliber: .300 AAC Blackout Barrel Length: 10.5 Barrel Material: Steel Barrel Finish: Black Nitride Twist Rate: 1:8 Sights: None Available At: GrabAGun