by any chance is the FVSR 1/2" UNF threading on the barrel??
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by any chance is the FVSR 1/2" UNF threading on the barrel??
1/2-28
tpi is threads per inch
and yes you are correct, a 1/2-20 tpi will not fit on a 1/2-28 tpi.
ty for helping a newbie out:)