Well I sent my gun off to get the engraving done and then got the fake suppressor removed. I think I have a problem though, one of the lugs looks a little smaller than the other ones. I was going to buy a 3 lug suppressor but now am scared that it won't fit. If one of the lugs out of spec am I screwed. Should I buy a HK flashider first and try it? Is that the best thing to do.