Description
Features:
Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt)Carrier has forward assist serrations
Shrouded firing pin
Nickel Boron Coating inside and out (Bolt, Carrier, and Gas Key)
Forged Mil-Spec gas key attached with Grade 8 hardware and Properly staked.
5.56 Bolt is shot Peened and MPI
Mil-Spec Extractor Spring, black extractor insert, Viton O-RingTool Steel Extractor
High quality BCG MADE IN AMERICA