SMITH & WESSON Mod. M&P 340 SKU:163072 Caliber: .357 Magnum / .38 S&W Special +P Capacity: 5 Rounds Barrel Length: 1.875' / 4.7 cm Front Sight: XS Sights 24/7 Tritium Night Rear Sight: Integral U-Notch Grip: Synthetic Overall Length: 6.31' / 16.0 cm Action: Double Action Only Weight Empty: 13.3 oz / 377.8 g Material: Scandium Alloy Frame Stainless Steel Cylinder Finish: Matte Black Frame Size: Small (J)- Internal Hammer Smith & Wesson's unique Scandium Alloy high strength frames allow for the lightest revolvers capable of firing .357 S&W Magnum®, or .44 Magnum. The Smith & Wesson J-Frame has become the most popular small frame personal defense revolver on the market. With decades of reliable performance to its credit, the J-frame line offers models capable of firing .22 LR, .22 Magnum, .38 S&W Special and the more powerful .357 Magnum loads....