C.S. Brady, SASS #63699 Posted October 31, 2011 Share Posted October 31, 2011 Does anyone know the thread size and pitch on a Norinco/IAC 97 shotgun? I have one that runs great, but has a small front bead. I just put an ivory one on my SXS and want to do something similar to this shotgun. Link to comment Share on other sites More sharing options...
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