Looking to attach a suppressor to a Tec-9 (yea yea but hell why not) I'm assuming the thread pitch is 3/4x10 same as the Mac's I have but doing a little bit of poking around online, US machine gun references a 3/4x10 OS. I am not machinist inclined at this point in my life and was wondering what, if any difference there is between to the Tec 9 threads and Mac thread pitches as i have one as well that id like to use it on.
