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 10 Smith & Wesson Model 10 The Smith & Wesson Model 10, previously known as the Smith & Wesson .38 Hand Ejector Model of 1899, the Smith & Wesson Military & Police or the Smith & Wesson Victory Model, is a revolver of worldwide popularity. In production since 1899, the Model 10 is a six-shot, .38 Special, double-action revolver with fixed sights. Over its long production run it has been available with barrel lengths of 2 in (51 mm), 3 in (76 mm), 4 in (100 mm), 5 in (130 mm), and 6 in (150 mm). Barrels of 2.5 inches (64