^^ Provided he or she is not otherwise prohibited.
Kestak, are you asking whether you, as a "snowbird" or "legal alien" can buy one while in Georgia, or simply possess one?
If you lawfully own one somewhere else within the US, you can certainly bring it into Georgia and possess it when you go there to visit. If you do not live in Georgia, and wish to buy one there, the laws regarding purchases of firearms by people who are not residents of the state in which the purchase takes place would apply.