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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 .45 ACP (not to be confused with .45 Colt) cartridge is a very popular caliber due to its low velocity and relatively high stopping power. This caliber is associated most with the Colt M1911, logically, as ACP literally means 'Automatic Colt Pistol'. However, there are many more guns and variations on the M1911 that are chambered in .45 ACP.
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.
The general specifications for Rock Island Armory 1911 pistols are: [5] Ordnance grade 4140 chromoly steel steel construction with a cast frame. [6] [7] 100% parts compatibility with US G.I. Flat grooved steel mainspring housing; Calibers: .45 ACP, 10mm Auto, .40 S&W, .38 Super, 9mm Luger, and .22 TCM [8] [9]
On July 20, 2012, the Colt 1911 Rail Gun was selected and won a contract to initially deliver 4,000 pistols for MARSOC and Force Recon. [16] The pistol was redesignated the M45A1 Close Quarter Battle Pistol (CQBP) and up to 12,000 will be delivered. [17] The Colt design is considered an upgrade of the previous pistol, not an entirely new design ...
The AMT Hardballer is a series of pistols that are part of the 1911 platform (based on the .45 ACP M1911) made by Arcadia Machine & Tool (AMT) from 1977 to 2002. [1] The Hardballer was the first entirely stainless steel 1911 pattern pistol. [2] Other features included adjustable rear sights and a lengthened grip safety. [3]
Colt had been working with Browning on a .41 caliber cartridge in 1904, and in 1905, when the Cavalry asked for a .45-caliber equivalent, Colt modified the pistol design to fire an enlarged version of the prototype .41 round. The result from Colt was the Model 1905 and the new .45 ACP cartridge.
Pages in category ".45 ACP semi-automatic pistols" ... Claridge Hi-Tec/Goncz Pistol; Colt Commander; ... Rock Island Armory 1911 series; Ruger American Pistol; Ruger ...