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  1. New Member Introduction & Site Assistance
    Is it wise to use parts with different coatings in the same BCG?
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  2. Malfunctions and Troubleshooting
    Hello, Got a nickel boron BCG (full auto, 5.56) from a discount-tier company that I believe sources from Toolcraft. BCG appears to be out of spec somehow. When I received it (assembled) there was no movement in the bolt / cam pin. When I tried standard disassembly, I couldn't get the firing...
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