The men, all carrying pistols, burst into the store on North Brightleaf Boulevard around 9:45 p.m. December 21.
They took cash, gaming systems, games, and even the personal property of employees.
Detectives released a surveillance picture of one of the men. He had a goatee and was last seen wearing a gray sweatshirt.
Anyone with information is asked to call Detective D.R. Johnson at the Smithfield Police Department at (919) 934-2121 or the Smithfield Tip Line at (919) 989-8835.