i live in az and i buy guns here. although i am not up on every law involved in the gun buying process i have never seen anyone without an az driver lic or other proof of being a resident able to buy a gun here, and i have unfortunatly been next in line behind more than a few that have tried. if there are exceptions i am not sure an average salesman would be aware of them. i will say it is as easy as getting an az driver license and thats pretty easy.
ya only got 1 arm and ya carry 3 guns for Christs sake. Well I don't want to get killed for lack of shooting back.