- Mil-spec, full auto-rated
- Properly staked gas key
- Self-lubricating polished finish
- Complete Bolt Carrier Assembly, Drop-in ready
- Properly Staked Gas Key, Bolt is Shot Peened, HPT & MFI Tested
The Radian bolt carrier is manufactured from case hardened 8620 steel with properly staked 4130 steel gas key. The accompanying bolt is case hardened 9310 steel, shot peened, HPT and MPI tested, and finished in a self-lubricating polished black nitride. Bolt lugs are CNC ground following heat treatment to insure the greatest accuracy possible.