We look at the bolt carrier group as the heart of the gun. If the gas port is the lungs, then the bolt carrier group is the heart. It’s what drives the entire gun. If you look at the AR platform’s cycle of operations, everything happens around the bolt carrier group. Locking, unlocking, extracting, ejecting…all of it begins with the bolt carrier group.
For enhanced carrier key security and peace of mind, this BCG comes with the OCKS (Optimized Carrier Key Screws) upgrade.
Works for 5.56 NATO, .300 Blackout, 6mm MAX and .350 Legend cartridges.
Description
Bolt:
Precision machined from Carpenter Technology No. 158 chrome-nickel alloy
Heat treated per mil-spec,
Shot peened per ASTM B851/SAE AMS2430S,
Vibratory tumbled
Individual high pressure/proof (HP) test
Full Auto test fired at assembly
Individual magnetic particle inspection ASTM E1444/E1444M (MP)