I GOT YA I SEEN ON THE M3 IT USED A LARGER HOLE THAN 12M MY UARGAN HOLE IS M12X1.0 IS WHAT I WAS TOLD I WOULD LIKE TO KNOW WHAT SIZE THREAD PITCH IS ON THE FX ADAPTER PART THAT SCREWS IN TO ACTION WATCHED VIDEO OF ERNEST REMOVEING IT HE STATED IT WAS 12MM BUT NOT WHAT THREAD PITCH M12 HAS LIKE 4 DIFRENT PITCHES 1.0 1.25 1.5 1.75