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The pistol's formal U.S. military designation as of 1940 was Automatic Pistol, Caliber .45, M1911 for the original model adopted in March 1911, and Automatic Pistol, Caliber .45, M1911A1 for the improved M1911A1 model which entered service in 1926. The designation changed to Pistol, Caliber .45, Automatic, M1911A1 in the Vietnam War era. [10]
Commissions to test possible new service pistols were active from 1904 till 1911. In 1911, a commission recommended adoption of the semi-automatic .38 ACP caliber Colt Military Model 1902 pistol, after field trials with 25 such pistols, all purchased from Colt's London Agency. However, as the US had just adopted the Colt .45ACP M1911 pistol it ...
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.
While the .45 ACP uses .451 inches in diameter for jacketed bullets, and .452 for lead bullets, the .45 Colt still uses .452 inch diameter jacketed bullets and .454 diameter lead bullets, often adding to the confusion between the two cartridges with similar names as the .45 ACP and Model 1911 pistols will often be called ".45 Colt" in common ...
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.
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]