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. Lightweight Alloy Frame for Easy Carry Stainless steel barrel and cylinder Snag-Free Enclosed Hammer Rated for Continuous +P Use The Model 642 is a variation of the Model 42 Centennial Airweight ® that integrates the time-tested features of the original with modern advancements. Model: Model 642 Caliber: .38 S&W SPECIAL +P Capacity: 5 Barrel Length: 1.875 Overall Length: 6.3″ Front Sight: Integral Rear Sight: Fixed Action: Double Action Only Grip: Synthetic Weight: 14.4 oz / 408.2g Cylinder Material: Stainless Steel Barrel Material: Stainless Steel Frame Material: Aluminum Alloy Frame Finish: Matte Silver