It happened Monday night at Spanky's East on Butler Street, where the 22-year-old man said he had been making small talk with two other men.
Police say the man had gone to his car, and that the other men followed him. They smoked marijuana in his car, police said, and then one of the men aimed a gun at the victim while they went through his pockets, taking $200 in cash.
Both robbers were black men in their early twenties. One was around five feet, six inches tall with a thin build. They both had one hooded sweatshirts, one green, one blue. One was clean shaven, the other had a beard.
Anyone with information can call police at 610-258-8746.