The Quick Stop on Cusseta Road was robbed by an armed man Sunday.
A black male, about 25-28 years of age, and standing about 5-foot-7 to 5-foot-10, pointed a small black semi-automatic pistol at the clerk and demanded money.
The thief was wearing a dark green shirt and black pants. Police say it is possible he got away in a red Chevrolet.
Columbus police are investigating.