The S&W Model 19 is a six-shot revolver chambered for the .357 Magnum cartridge.
The handgun was first produced by Smith & Wesson on its K-Frame platform as an updated .357 Magnum version of the Smith & Wesson Model 15, which was the Smith & Wesson Model 10 with a heavier barrel and adjustable sights. With the advent of the more powerful .357 Magnum round, Smith & Wesson offered a newer version of the Model 15, beefed up to take the then new cartridge of the time. The .357 Magnum Model 19 was adopted by many law enforcement (and some military), however, budgetary concerns and 'political considerations' kept the traditional .38 revolvers such as the Model 10 & Model 15s in service for a long time, concurrent with the active usage of the Model 19.
The gun was originally released with Blue carbon steel or nickel finish with wooden grips. The revolver was produced from 1957 to 1999 in large numbers, and was soon picked up by law enforcement, and today, police around the world put their trust in it every day.
A stainless steel version of the Model 19, the Smith & Wesson Model 66, was produced until 2003.