It happened at 11:50 a.m. on May 25th inside a food market at 7290 Woodland Avenue.
Police say the suspect and victim got into an argument when the suspect pulled out a gun.
He pointed it at the victim, police say, and took the victim's cell phone.
The suspect then got into a pickup truck with damage to the right front fender and hood.
He may have driven into Darby borough, and was in the company of a young woman.
The suspect is described as a black male about 25 years old with a thin build, scruffy beard and standing 5'10" to 5'11" tall. He was wearing a black hat with a New York Yankees logo, a dark-colored hooded sweatshirt with the word "UKRAINE" on the front and dark-colored jeans.
The woman with him is described as a black female about 20 to 25 years old with a thin build standing 5'6" to 5'7" tall. She was wearing a denim top with a checkered scarf on her head.
Anyone with information is asked to contact Philadelphia Police at 215-686-TIPS (8477), text a tip to PPD TIP (773847) or go to PhillyPolice.com.