Ar 15 full Auto 5.56 BCG w/Carpenter 158 Bolt melonite
This complete M16 Bolt Carrier Assembly is Chrome Lined inside the Carrier for long wear, and includes a staked-on Gas Key with Chrome Lining, a complete Bolt Assembly, Cam Pin, Firing Pin, and Firing Pin Retaining Pin. All components are of the highest quality, Bolt material is magnetic particle inspected and certified against internal flaws. This Complete Bolt Carrier is guaranteed to fit and function in your Ar-15 rifle, and many others - ready to insert in your Upper Receiver and take to the range.
Ar15 bolt carrier goup is made of Mil-spec Carpenter 158 steel, Shot peened, High pressure tested and Mag Particle Inspected. Gas key is machined out of bar stock, chrome lined phosphate coated, and secured with grade 8 fasteners and staked per mil-spec. AR 15 Bolt carrier assembly is phosphated outside and chrome lined inside, our M16 bolt carrier assembly comes with different caliber bolts depending on specific caliber built.