Police say surveillance video and images from inside the bar show the men hold a male employee at gunpoint, tie his hands and feet together and steal money.
The men fled when a female employee entered the room.
Police have provided the following descriptions for the suspects:
Suspect 1: White man in his mid 30s, average height and weight, wearing a dark knit ski mask and large frame glasses, black leather jacket and blue jeans. He was armed with a dark colored handgun.
Suspect 2: White man, 300-plus pounds, wearing a dark knit ski mask, gray hooded sweatshirt, and sweat pants with two white stripes down the side. He also was armed with a dark colored handgun.
Anyone with information is asked to call the Chesterfield Police Department at 586-949-2322 or Crime Stoppers at 800-SPEAK-UP.