Witnesses tell police the men entered the store on East Street Road in Warminster Township around 1:45 p.m. Saturday.
They say the men started yelling things like 'active shooter,' 'gun,' and, 'get down on the ground.'
The men then left the store and drove off in a silver or light blue Nissan Rogue. They were in the company of a female, police said.
The vehicle had Pennsylvania license plate KCT-3096.
Anyone with information is asked to contact police at (215) 672-1000.