Description
Type: 223/5.56 NATO AR15/M16 (full auto)
Bolt: 9310 Steel, Heat treated, Shot-peened, Titanium Nitride Finish, MPI-tested
Carrier: Billet-machined case-hardened 8620 steel w/TiN Finish
Gas Key: 4140 steel, attached using Grade 8 hardware and proper staking techniques
Made in USA
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