AR .308 CAL NITRIDE BOLT CARRIER GROUP MIL-SPEC BCG
by GUNTEC
– Made for 7.62X51 / 308 Cal
– Nitride Treated
– HPT/MPI Tested and Marked
– 9310 Hardened Steel Bolt
– 17-4 Stainless Steel Firing Pin (Heat treated to H900 Condition)
– 8620 carrier and gas key
– Hardened extractor S7 tool steel
– The group comes fully assembled with properly torqued and staked gas key -Fits DPMS
– MADE IN THE USA