I also stopped by Mid America Arms which is right next door to Southside Pawn. The people here weren't rude either but not nearly as friendly as Southside Pawn. Additionally, there were a lot of regulars in there enjoying talking with the staff like old buddies. It was hard to get anyone's attention since I'm not a regular or some know-it-all, bragging, loud-mouthed, gun-guy.
I've never had that problem with them. Their prices and selection are kind of mediocre, but the staff has always been friendly and ready to assist me, both when I am buying and when I'm looking.