I might have to give the emery cloth a try since spartan armory is in the process of moving locations and won't be able to bead blast it for quite some time and I am just not familiar with many good gunsmiths in GA.
If I were really going balls to the wall, I might try the Hard Hat treatment by Severns. I have heard good things about it, but I just can't bring myself to spend that kind of money on it.