This is a Phase 5 Weapon Systems Bolt Carrier Group known as the M16, model BCG-M16.
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.
Features:
Black Phosphate Coating
HPT/MPI Tested Bolt
Chrome Lined
Mil-Spec
