It happened at the 423 Pleasant Drive location on Sept. 15 at 7:45 p.m when a male suspect demanded cash from the register while removing a handgun from his waistband.
The man then ran into a wooded area near the store.
In surveillance video, he can be seen wearing a black hooded sweatshirt, red basketball shorts and black sneakers.
If you have information about this or any crime please contact the Criminal Investigations Division at 919-560-7151 or email crimetips@durhamsheriff.org.