Rubber City Armory Bolt Carrier Group Drop In Ready
Includes:
Complete Bolt
Machined from Carpenter 158 Steel
Shot peened
Batch MPI inspected
Retaining Pin
Carrier with Staked Gas Key
Machined from 8620 Steel
Firing Pin
Cam Pin
BLACKNITRIDE℠ Processing:
Reduces the need for oils and
greases – making it optimal for
operation in arid environments.