Smith & Wesson Performance Center Pro Series Model 640 Complete Specs and Full Gun Specifications

Smith & Wesson J-Frame revolvers have had your back since 1950. These small revolvers were designed to fire a full power round and are as simple and easy to use as they are reliable. Available in various calibers and with three diverse hammer designs, it is no surprise that the Smith & Wesson J-Frame has become the most popular, small-frame, defense revolver on the market. In 1995, Smith & Wesson introduced the Model 640, the first J frame revolver chambered in the powerful .357 Magnum round. Based on Model 40 Centennial, the Model 640 is a small frame concealed hammer revolver that packs a full-sized punch. The Model 640 Pro Series integrates the time-tested features of the original with modern advancements and competition specifications and features. • Stainless steel frame, barrel, and cylinder • Front and Rear Dovetail Tritium Night Sight • Concealed hammer • Cylinder cut for moon clips (Moon Clips Included) • Rated for Continuous +P Use A moon clip is a ring-shaped or star-shaped piece of metal designed to hold multiple cartridges together as a unit for simultaneous insertion and extraction from a revolver cylinder.