The Minuteman Upper is the POF-USA twist on what a direct impingement barreled upper should be. The Dead Air KeyMo Muzzle Brake is pinned and welded to make the barrel 16.1" in overall length. The Minuteman Upper includes POF-USA's Mil-SPEC Enhanced bolt carrier and the patented Roller cam pin. These uppers come with POF's M-LOK compatible Renegade rail. Mount your favorite optic and the Minuteman Upper is ready for the range or the field right out of the box. We think you'll be impressed. FeaturesLow profile gas blockDead Air Keymo Muzzle BrakeRenegade RailIncludes U.S. Flag ejection port coverAluminum Billet Forged Upper ReceiversMil-Spec Bolt Carrier Group with a Roller Cam PinAmbidextrous Strike Eagle Charging Handle