Hi guys,
I have an off the shelf 450BM from Bushmaster with the 20" barrel and A2 stock. I noticed that, if I hold the stock in one hand and the handguard in the other and twist, there is a small amount of play. It isn't from the stock, because I notice the same thing if I grab the lower receiver itself instead of the stock. Is that normal? I am thinking it isn't, but I don't know for sure.
I did also grab the barrel itself with one hand and the lower receiver with the other and twisted, and I don't notice the play then. But it is a little harder to get leverage that way also. I don't have one of those large front sight bases to grab.
Does this sound like a loose barrel nut?
Thanks,
Dennis