AIM AR/M16 5.56/.223/.300 BLACKOUT complete Nickel Boron Bolt Carrier Groups.
We are having these bolts manufactured to our exacting standards with no Frills added to be able to offer the best BCG at the Best Price!
Features 9310 Bolt Material; 8620 carrier and 4140 gas key; Properly staked machined billet gas key hardened to USGI specifications fastened with Hardened Grade 8 Fasteners; Shot peened MPI (Magnetic Particle Inspected) Bolt. Extractor insert installed. More information below.
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