Daniel Defense Cold Hammer Forged 5.56 NATO Barrel

Their 5.56 barrel is the most accurate and longest lasting barrel attainable for your AR-15 build. They Cold Hammer Forge our barrels, a process that sets them apart from other barrel manufacturers. The Government profile barrel is forged from 4150 Chrome Moly Vanadium steel, Mil-spec heavy phosphate coated and chrome lined with a gas system. Specifications: Caliber: 5.56mm NATO Barrel Length: 11.5", 12.5", 14.5", 16" Manuf. Process: Cold Hammer Forged Twist Rate: 1:7 Muzzle Thread: 1 2 x 28 TPI (Threads Per Inch) Material: Chrome Moly Vanadium Outside Finish: Mil-Spec Heavy Phosphate Inside Finish: Chrome Gas System: 11.5": Carbine 12.5": Carbine 14.5": Mid-length 16": Mid-length Diameter At Gas Port: .750 Barrel Extension: A4 Barrel Profile: Government Manufacturer: Daniel Defense