Quote Originally Posted by KS63 View Post
Is the rattling because of an out of spec receiver or safety selector? Should be mil-spec sizes.
As stated before I'm not an AR guy but my understanding is that the hole is milled a little larger than normal and there's no spring. I have read that some guys have put other safeties in and that has helped. I did a couple drop tests when I got mine and it works as intended. It's actually harder than any other safety I have to actuate.