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The 1991–2001 model used a large "M1991A1" roll mark engraved on the slide. The 2001 model introduced a new "Colt's Government Model" roll mark engraving. The 1991 series incorporates full-sized blued and stainless models in either .45 ACP or .38 Super, as well as blued and stainless Commander models in .45 ACP. [citation needed]
The Colt Officer's Model or Colt Officer's ACP is a single-action, semi-automatic, magazine-fed, and recoil-operated handgun based on the John M. Browning designed M1911. It was introduced in 1985 as a response from Colt to numerous aftermarket companies making smaller versions of the M1911 pistol.
Colt Manufacturing Company.45 ACP 10mm Auto.40 S&W 9×19mm Parabellum.38 Super United States: 1985 Colt New Service: Colt Manufacturing Company.45 Colt.455 Webley.476 Enfield.45 ACP.44-40 Winchester.44 Special.38-40 Winchester.38 Special.357 Magnum United States: 1898 Colt Officer's ACP: Colt Manufacturing Company.45 ACP United States: 1985 ...
It was the first aluminum-framed large frame pistol in major production and the first Colt pistol to be originally chambered in 9 mm Parabellum. The first year's production included .45 ACP and .38 Super chamberings. [2] In 1970, Colt introduced the all-steel "Colt Combat Commander", with an optional model in satin nickel.
The full-sized version was chambered for .45 ACP and 10mm Auto, as well as in 9mm and .38 Super for a time in 1992. The Commander was chambered for .45 ACP, along with a somewhat rare .40 S&W version in 1992. The Officer's model was available in .45 ACP and rarely .40 S&W, again only in 1992.
Made in various calibers, the .45 Colt version with a 5½" barrel, was adopted by the U.S. Armed Forces as the Model 1909. [ 1 ] The Colt M1917 revolver was created to supplement insufficient stocks of M1911 pistols during World War I. [ 2 ] It was simply a New Service re-chambered to take the .45 ACP cartridge and used half-moon clips to hold ...
Models in use included the M1911A1 (Colt .45 Automatic), Smith & Wesson (Combat Masterpiece in .38 Special caliber), Smith and Wesson Model 1917 (.45 ACP and .45 Auto Rim) and various other small arms. By the 1970s it became obvious that the M1911A1 (Colt Government .45ACP) model was going to have to be replaced. [4]
This model is commonly referred to as the "Officer". It was adopted to give officers a weapon with greater stopping power and effectiveness over previously issued sidearms. There is some disagreement in sources over its formal designation, possibly either Pistol, General Officers', Caliber .45, M15 or Pistol, Cal. .45, Semi-automatic, M1911A1 ...