This one was kinda hard to find, but after searching around, I think this question has been answered in this thread:
http://thefiringline.com/forums/show...a+purchase+ccw
In short, you are able to purchase a gun from a GA resident if you are over 18+. It doesn't matter if it's at a gun show or not. You can meet a private individual in a WalMart parking lot, and you can find a table at a gun show run by an FFL. I suggest looking on local forums, Facebook groups, and Armslist for a f2f purchase.