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. Beautifully enhanced with diamond-tipped machine tool scroll engravings on the frame and cylinder, the Model 640 integrates the time-tested features of the original with modern advancements. Mfg: Smith & Wesson
