5.45 Complete Fortis Upper

Complete 16" Anonymous Arms 5.56 Billet Upper Receiver with a carbine length gas system and a Nitride M4 Barrel with a 1/7 Twist. Fortis REV-14 Free Float rail and Fortis RED Nitride Brake. All Mil-spec, US Made parts including a Nickel Boron Bolt Carrier Group. Solid steel low profile gas block. HPT (High Pressure Tested) and MPI (Magnetic Particle Inspected) Bolt and Barrel. Charging handle included.