Diamondback DB 300 AAC Blackout Vanadium Steel Pistol Barrel - 10in - Black Nitride - The Diamondback DB Barrel features a heavy profile, providing enhanced stability and accuracy. The 1: 8 twist rate ensures excellent accuracy and stabilization for a wide range of bullet weights. The pistol length gas system offers reliable cycling, making it suitable for various shooting scenarios, particularly with subsonic and suppressed loads in the 300 Blackout caliber. This barrel is made from Chrome Moly Vanadium Steel, known for its durability and resistance to wear. The nitride finish further enhances its corrosion resistance and longevity. The barrel's black finish gives it a sleek and professional look. 1:8 Threaded Barrel: 1/2 x 28 Material: Chrome Moly Vanadium Steel Barrel Type: Pistol Length Heavy Profile