I think the one BSR is talking about is in Warner Robins and is "Chucks". BIG place, lots of guns, fishing things, reloading supplies, hunting & outdoor stuff-got it all. May be kinda pricey though.
Second the suggestion on the "Rifleman" although the selection is not huge and some are 'niche' guns.
Couple of other pawn shops in WR, but if you go in one that is run by a redheaded lady, LEAVE. She is NOT into letting people 'browse' and look at things!