The 38 Special cartridge and the revolver to fire it was first introduced by Smith & Wesson in 1899. It has become one of the most recognized handgun/caliber combinations in the world. Since its introduction in 1899, the K-Frame has been a favorite for military and police professionals as well as target shooters and enthusiasts. This K-Frame is available in 38 S&W Special. This model includes an integrated safety lock.