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 Model 3 Smith & Wesson Model 3 The Smith & Wesson Model 3 was a single-action, cartridge-firing, bottom-break revolver produced by Smith & Wesson from circa 1870 to 1915, and was recently again offered as a reproduction by Smith & Wesson and Uberti. It was produced in several variations and sub-variations, including both the "Russian Model", so named because it was supplied to the military of the Russian Empire (41,000 No. 3's were ordered in .44 caliber by the Imperial Russian Army in 1871), and the "Schofield" model, named after Major George W. Schofield, who made his own modifications to the Model