Ballistic Advantage 20" 5.56 Government Rifle Length Modern Series Barrel

Ballistic Advantage 20" 5.56 Government Rifle Length Modern Series BarrelThis 5.56 chambered, 20-inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion-Resistant Finish and a QPQ-coated M4 feed ramp extension.This barrel features a longer .750" profile dimension necessary for proper installation of the OPS Inc 12th model collar and suppressor.Specifications Length: 20" Material: 4150 Chrome Moly Vanadium Profile: Government Finish: QPQ Corrosion Resistant Gas System Length: Rifle Gas Block Journal: .750" Twist Rate: 1:7 inches Muzzle: 1/2x28 Threaded Weight: 35 oz