7.62 x 39mm Caliber Bolt Assembly Nitride

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.

- Fully Assembled Bolt

- Shot Peened

- MPI (Magnetic Particle Inspected)

- Power Spring Kit

-Black Nitride Coated