This paper pistol is the Smith & Wesson Model 19, paper model is designed by Kamikuzu. The S&W Model 19 is a revolver produced by Smith & Wesson on its K-frame platform. The model 19 is chambered for .357 Magnum. The K-frame is somewhat smaller and lighter than the original N-frame .357, usually known as the S&W Model 27.
The Model 19 was produced in blued carbon steel or nickel-plated steel with wood or rubber combat grips, an adjustable rear sight, semi-target hammer, serrated combat-type trigger, and was available in 2.5", 4", or 6-inch barrel lengths. The weights are 30.5 ounces, 36 ounces, and 39 ounces, respectively. The 2.5- and 3-inch barrel versions had a round butts, while the others had square butts.
The Model 19 was produced from 1957 to November 1999. The Model 66 was produced from 1970 until 2005. The Model 66 differed by its use of stainless steel and its smooth target-type trigger. The Model 19 and the Model 66 had the same trigger options.
You can download this paper gun model from here: Smith & Wesson Model 19 Pistol Free Paper Model Download