Investigators say the suspect held his gun against the neck of a female customer and ordered the store clerk to empty the cash register into a plastic bag. He then ordered the customers to put their money and valuables into the bag before fleeing.
No one was injured during the robbery.
The suspect was described as a black man, 20-30 years old, about 5 feet 11 inches and 220 pounds. He was wearing dark clothing and a baseball cap with the letter "B" on the front.
The customers and employee didn't get a look at his vehicle.
Anyone with any information about the robbery is asked to call West Valley Area robbery detectives at (818) 374-7730.