Midwest Industries AR-15/M16 Bolt Carrier Group Caliber 5.56mm
Bolt made of Carpenter No 158 Steel
Shot Peened Bolt
Bolt Carrier made of 8620 Steel
Magnetic Particle Inspected and marked MPI
Hard chrome lined carrier with phosphate finish
Chrome lined gas key, properly staked
Shrouded firing pin
Mil Spec O Ring
100% made in USA
MI Lifetime Warranty
Related products
