This guide details the disassembly and reassembly of an AR-15/M-16 Bolt Carrier Group (BCG) from the nsz85 channel. It covers removing the firing pin retaining pin, firing pin, cam pin, and bolt. Reassembly involves reversing these steps, emphasizing correct component orientation. The instructor, demonstrating experienced authority, provides practical field tips and checks for proper gas key staking and torque.
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