308 BOLT CARRIER GROUP - NICKEL BORON
8620 Steel Carrier
Nickel Boron Coated Finish
Staked gas key
THE AR10 PLATFORM DOES NOT ENJOY A COMMON DESIGN BETWEEN MANUFACTURERS, LIKE THE AR15. AS A...
SPIKE'S TACTICAL LIGHTWEIGHT M16 BCG - NICKEL BORON FINISH
Nickel Boron Coating Inside and Out (Bolt, Carrier, and Gas Key)
Laser Engraved with ST Spider Logo
Lightweight
HPT/MPI Bolt