AR/M16 Mil-Spec Bolt Carrier Group Assembly .223/5.56 - Black Nitride - Made in U.S.A.
Carrier made with 8620 Steel and bolt made from 9310 Vac-Arc Premium Carburizing Steel which has a high core hardness and high fatigue strength unlike standard Hot/cold rolled 9310 steels. The nitride coating is the strongest plate available, having a Rockwell hardness of 75, it's the same protective finish that's used in gun barrels and CNC tool protection. If you're looking for a bolt carrier that's going to hold up against the roughest conditions then this bolt carrier group is the one for you.
- Shot Peened
- Power Spring Kit
- MPI (Magnetic Particle Inspected)
- HPT (High Pressure Tested)