Hi all. I recently built an AR for a friend. I've built six different rifles with no issues though in my own builds I'm very aware of the "buy cheap buy twice" mantra.
My buddy spent a lot of money on some parts, then underspent on others. Specifically, he bought a kit that included buffer tube, spring, buffer, stock.
The weights inside the buffer slide when you tip it. I suspect this may be causing some sort of bump fire situation. It shoots two rounds, cycles and goes into full battery, but doesn't reset the hammer. Any ideas? I haven't thrown a good buffer in there yet but any other input would be great.


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