Melonite/ nitride QpQ with 158 carpenter bolt BCG 7.62x39
-8620 Tool Steel Enhanced Radius design (Angle Cut) Carrier with inside and out Black Nitride Treatment
-CARPENTER 158 MPI Bolt with inside and out Black Nitride Treatment
-Billet Machined Extractor with Black Insert and O-Ring upgrade
-Billet Machined 4140 Steel Gas Key
-Grade 8 Fasteners
-Military Specification Gas Key Staking
