Description
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.
- Type : Bolt Carrier Group
- Model : M16/M4
- Dimensions : 7.5″ L
- Material : Heat-Treated Stainless Steel
- Finish : Black Phosphate
