Smith & Wesson SD VE Smith & Wesson SD VE The Smith & Wesson SD VE is a polymer-framed, striker fired semi-automatic pistol series introduced in 2012 by the American company Smith & Wesson. The SD VE is a direct evolution of the Smith & Wesson SD and Smith & Wesson Sigma designs. The SD VE design has an improved self-defense trigger and a comfortable, ergonomic, textured grip. The SD VE also features an improved stainless steel barrel and slide which the SD did not include. The SD VE is a striker fired semi-automatic pistol. This trigger system prevents the firearm from discharging unless the
Smith & Wesson Model 645 shooting. Smith & Wesson (S&W) began experiments with .45 ACP-firing pistols in 1984, and produced their first one, the Model 645, in 1985. Public demand led to the development of this series. The series is a .45 ACP version of their 9mm Parabellum weapons. They are normally double-action weapons, or what Smith & Wesson refers to as a traditional double action. They generally have a barrel bushing press fitted into the muzzle end of the slide instead of a separate barrel bushing like a 1911 pistol. Like many Smith & Wesson models, each variant was generally in production for only