Phase 5 Weapon Systems, Bolt Carrier Group, For M16, Black Phosphate Chrome Lined Finish
- Black Phosphate Coating
- HPT/MPI Tested Bolt
- Chrome Lined
Phase 5’s Mil-spec M16/M4 bolt carrier features a heat treated and chrome lined inner with a black phosphate coating. The complete bolt carrier group includes cam pin, firing pin, gas key, and bolt. All bolts are HPT/MPI tested.