Manufactured in 1963. Produced in a limited quantity of approximately 3,300. This pistol was built in response to public demand for a high-velocity, small-caliber handgun using a Ruger flattop single action frame and replacing the cylinder with a rotating breech block. Fitted with serrated front blade and an adjustable rear target notch sights. The barrel is factory drilled and tapped for a 1 inch scope base. With factory box and manual.