FailZero M16 .223 / 5.56 Black Nitride Bolt Carrier Group

The FailZero M16 / M4 Black Nitride Bolt Carrier Group is a fully assembled, ready-to-install BCG compatible with most standard AR-15 upper receivers. Featuring heavy-duty tool steel construction, this BCG boasts an anti-reflective salt bath black nitride finish for superior wear and corrosion resistance for long-lasting service you can depend on. Includes a precision-machined bolt and extractor, bolt carrier, cam pin, carrier key, and a chrome-finished firing pin. Order today!