bolt not locking back

  1. G

    AR-15 not locking back on last round

    So I built my first AR-15. I did it because I like to tinker with things. I followed a hodgepodge of videos from the usual sources e.g. Brownells, Midway. I really enjoyed the internet research, and actual assembly. Unfortunately my first attempt was not a success because the rifle is not...
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