Smith & Wesson SW1911 run around 38 to 39 ounces (1,100 to 1,100 g), the PC 1911 is heavier, at approximately 41 ounces (1,200 g). Smith & Wesson SW1911 The SW1911 (Smith & Wesson) is a stainless steel framed, single action, semi-automatic pistol that is based on the M1911 .45 ACP, that comes in either 9×19mm or .45 ACP. In 2003, Smith & Wesson introduced their variation of the classic M1911 .45 ACP semi-automatic handgun, the SW1911. This firearm retains the M1911's well known dimensions, operation, and feel, while adding a variety of modern touches. Updates to the design include serration at the front
Smith & Wesson Model 645 Smith & Wesson Model 645 The Smith & Wesson 645 and Smith & Wesson 745 are second-generation semi-automatic pistols which predates Smith & Wesson's 4500 series of handguns. The S&W 645/745 is chambered for the .45 ACP cartridge. The S&W 645 is constructed almost entirely from stainless steel and is thus extremely resistant to harsh weather conditions, whereas the S&W 745 has a stainless steel frame and a blued carbon steel slide. The S&W 645 was introduced in 1985 and discontinued in 1988. The S&W 745 was produced from 1986 to 1990, primarily as a single-action competition gun for IPSC