The man entered the Family Dollar on the 1900 block of East Gwinnett Street about 6:30 p.m., waited until other customers left and then robbed the clerk.
The suspect was described as a black male in his 40s, between 5-5 and 5-7 and 140-160 pounds. He was wearing a black and red ball cap, gray T-shirt and blue jeans and had a white gauze patch on the right side of his face.
Anyone with information on the case is asked to call Crimestoppers at (912) 234-2020 or text CRIMES (274637). Tipsters remain anonymous and may qualify for a cash reward.
A confidential Tip Line also is open directly to investigators at (912) 525-3124.