M1911 pistol
| Automatic Pistol, Caliber .45, M1911 | |
|---|---|
| M1911 and a M1911A1, both manufactured by Colt | |
| Type | Semi-automatic pistol | 
| Place of origin | United States | 
| Service history | |
| In service | 1911–present | 
| Used by | See Users | 
| Wars | As standard U.S. service pistol:
In non-US standard use: 
 | 
| Production history | |
| Designer | John Browning | 
| Designed | 
 | 
| Manufacturer | Colt Manufacturing Company, Smith & Wesson, Norinco, other companies | 
| Unit cost | $26.38 (1938), equal to $589 now | 
| Produced | 1911–present | 
| No. built | 2,734,345 (produced by Colt) 4,294,345 (total including licensed copies) | 
| Variants | 
 | 
| Specifications | |
| Mass | 39 oz (1,100 g) empty, with magazine | 
| Length | 8.5 in (216 mm) | 
| Barrel length | 
 | 
| Cartridge | .45 ACP, .455 Webley Auto (British Contract), .38 Super, 9x19mm Parabellum, 7.65mm Parabellum, 9mm Steyr, .400 Corbon, others | 
| Action | Short recoil operation | 
| Muzzle velocity | 830 ft/s (253 m/s) | 
| Effective firing range | 50 m (160 ft) | 
| Feed system | 7-, 8-, 9-, 10- or 12-round box magazines | 
The Colt M1911 (also known as 1911, Colt 1911, Colt .45, or Colt Government in the case of Colt-produced models) is a single-action, recoil-operated, semi-automatic pistol chambered primarily for the .45 ACP cartridge.