Buy Online | Phase 5 Weapon Systems M16/M4 Bolt Carrier Group Mil-Spec Black Phosphate Stainless Steel
Original price was: $150.00.$63.00Current price is: $63.00.
Specifications
Material—-Stainless steel bolt carrier group with black phosphate exterior; heat treated chrome-lined inner
WARNING: This product can expose you to chemicals including arsenic, which is known to the State ofCalifornia to cause cancer. For more information, go toWWW.P65WARNINGS.CA.GOV
Product Overview
Phase 5 Weapon Systems mil-spec M16/M4 bolt carrier group delivers a chrome-lined, heat treated inner paired with a black phosphate coating for improved wear resistance and corrosion protection. This complete BCG is engineered for AR pattern reliability and includes the essential components needed for a proper bolt carrier group assembly.
Key Features
- Heat treated and chrome lined inner for durability under repeated cycling
- Black phosphate exterior coating for corrosion resistance and wear management
- Complete group includes bolt, carrier, gas key, cam pin, and firing pin
- Built for M16/M4 mil-spec AR platforms
Upgrade or replace your AR’s rotating assembly with a mil-spec M16/M4 bolt carrier group from Phase 5 Weapon Systems.





