Home / AR Parts / Watchtower Firearms / F-1 Firearms Durabolt AR-15 Bolt Carrier Group Assembly, Black - DB556DLC
F-1 Firearms Durabolt AR-15 Bolt Carrier Group Assembly, Black - DB556DLC
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Apr 29, 2026
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Specifications
Description
The F-1 Firearms DuraBolt Black Nitride direct impingement full auto rated M16/M4 bolt carrier group, for use in AR15 platforms, is compatible with MIL-SPEC receivers and associated components. The bolt carrier and bolt are ground after heat treat to ensure tolerances.
