Guntec USA AR-15 Nitride BCG Bolt Carrier Group M16 5.56 AR15 Milspec
Guntec USA has been manufacturing AR-15, AR-308 and AR 9mm accessories since 1989. Our goal is to distribute excellent quality, at an economical value. This full body M16 model is 5 Star Reviewed and includes a 9310 Magnetic Particle Inspected Bolt with a hydraulicly staked carrier key in a resilient "easy clean" lubricious coating.