Smith & Wesson "N" to the largest .44 Magnum type frame. In 2003, the even larger "X" frame was introduced for the .500 S&W Magnum. Most Smith & Wesson revolvers have been equipped with an internal locking mechanism since the acquisition by Saf-T-Hammer. The mechanism is relatively unobtrusive, is activated with a special key, and renders the firearm inoperable. While the lock can simply be left disengaged, most gun enthusiasts prefer "pre-lock" guns. In 1953 the U.S. Army was looking for a pistol to replace the Colt 1911A1. To obtain a bid from the U.S. Government, Smith & Wesson began working on a
Smith & Wesson At the end of the war the U.S. Government charged White with causing the retardation of arms development in America. Demand for revolvers declined at the close of the Civil War so Smith & Wesson focused on the development of arms suitable for use on the American frontier. In 1870 the company switched focus from pocket sized revolvers to a large frame revolver in heavier calibers (.44 S&W American). This new design, known as the Smith & Wesson Model 3, was adopted by the US Army as the first cartridge-firing revolver in US service. In 1899 Smith & Wesson introduced