Ballistic Advantage 8" 5.56 NATO Modern Series Barrel

Ballistic Advantage 8" 5.56 NATO Modern Series BarrelThis 5.56 chambered 8-inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.Specifications Length: 8" Material: 4150 Chrome Moly Vanadium Profile: DRP Finish: QPQ Corrosion Resistant Gas System Length: Pistol Gas Block Journal: .750" Twist Rate: 1:7 inches Muzzle: 1/2x28 Threaded Weight: 21 oz All NFA/ATF Rules ApplyYou may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel, along with a non-NFA lower receiver, is prohibited, except when installed on a Pistol configuration firearm.