I just picked this up and believe it or not it is a great lower, nice deep even black color and fits all my uppers tight with no play.

This is the problem, I ran a bunch of rounds through it on friday and noticed yesterday a little movement in the grip, when I pulled the screw it seems to be much finer than a standard AR grip screw. Should I go to a slightly larger screw or the same size but with courser threads?
Or?

I thought that was about the correct size, I will have to guage this one, either the screw is too fine or the threads have been damaged, unless of course the hole is definitely stripped.

Jeff

I tried a different grip screw and its fine, the original was partially stripped and had minimal thread contact.