Looks good, does the job, but... - Agency Arms 118 Dual Port Smith & Wesson M&P9 1.0 Barrel Compensators

Comp did not fit on the barrel past half a turn. Made me question if the pitch was wrong. After double and triple checking that the thread pitch of the barrel and the comp were the same 1/2x28 according to manufacturer websites, i resorted to running a UNEF tap thru it. Worked like a charm, cleaned out a burr and a bit of the black coating that seemed to be gumming up the threads. Now it goes on smooth and easy. Not loctited so i can swap for supressor