Ruger 8638 American DA/SA 9mm pistol with a 4.2 inch barrel and 10+1 capacity. Features a polymer wraparound grip system with interchangeable grip modules in small, medium, and large sizes, Novak LoMount Carry 3-Dot sights, ambidextrous slide stop and magazine release, and the included two nickel-teflon plated steel magazines. Specifications: Caliber 9mm Luger, Type Pistol, Action Double Action, Barrel Length 4.2, Frame Material Polymer, Slide Material Stainless Steel, Finish Black. Overall Length 7.50 inches, Weight 31 oz, Twist 1:10 RH. Not eligible for shipment to California.