Or a cap gun. Looks a sort of like a Mattel toy pistol that was popular back in the 1950's. I have an old Mattel Fanner "Shootin' Shell" single action that is actually realistic enough to fool a lot of people that it is a real gun. It fooled my mom for years. I think they made a Mattel Chief's Special revolver too which would look a lot like the one pictured.