The robbery happened at the store at 501 Church Lane in Yeadon at 4:07 a.m. on Friday, April 6th.
Police say surveillance video shows the man entering the store and, once at the end of an aisle, produces a handgun and places it inside a black sock.
The man then walks up the counter, pointed the gun at the lone clerk, and demanded money from the register.
The man was last seen getting into a taxi which left the area southbound on Church Lane.
The suspect is described as a light-skinned black male standing between 5'8" and 5'11" tall and weighing about 185 pounds. He had a light beard and goatee and was wearing a black hooded Nike sweatshirt with a white t-shirt hanging out of the bottom. He also wore black warm-up pants with a white stripe down each leg and black sneakers.
Police say the man also walked with a distinguishing limp involving his right foot.
Anyone with information is aked to contact the Yeadon Police Department Detective Division.?