Description
223/5.56 NATO AR15/M16 (full auto) Bolt: Case hardened 9310 steel, shot peened w/ black nitride finish Carrier: Billet machined case hardened 8620 steel w/ black nitride finish Gas Key: 4130 steel, attached using Grade 8 hardware and proper staking techniques
Additional Information
Option1 | 5.56mm NATO |
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