Complete (mil-spec) bolt carrier group finished in a self-lubricating polished black nitride
- Bolt carrier is manufactured from case hardened 8620 steel
- Gas key is manufactured from staked 4130 steel
- Bolt is manufactured from case hardened 9310 steel (bolt lugs CNC ground after heat treatment)
- Cam pin manufactured from hardened 4343 steel
- Firing pin manufactured from 8740 steel & hard chrome coated
 
Compatible with 5.56 NATO, .223 REM, and .300 Blackout