Engineered for performance and reliability, this 9-inch .300 Blackout barrel from Ballistic Advantage is ideal for pistol-length AR-15 builds. Machined from high-grade 4150 Chrome Moly Vanadium steel and finished with QPQ corrosion-resistant nitride, this barrel offers exceptional durability and longevity. Its pistol-length gas system ensures smooth cycling, even with subsonic or suppressed setups. Whether you're building a compact home defense rifle or a precision blackout pistol, this barrel delivers tight tolerances and impressive accuracy. Features: Caliber: .300 AAC Blackout Length: 9" Gas System: Pistol-length Profile: Modern Barrel Material: 4150 CMV steel Finish: QPQ corrosion-resistant nitride Thread Pitch: 5/8x24 Twist Rate: 1:7 M4 feed ramps for reliable feeding Perfect for builders who demand precision, reliability, and performance from their .300 BLK AR-15 setup. Proudly made in the USA.