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Description
The M1911 is a single-action, semi-automatic, magazine-fed, recoil-operated pistol chambered for the .45 ACP cartridge, which served as the standard-issue sidearm for the United States armed forces from 1911 to 1985. It was first used in later stages of the Philippine-American War, and was widely used in World War I, World War II, the Korean War, and the Vietnam War. The M1911 is still carried by some U.S. forces. Its formal designation as of 1940 was Automatic Pistol, Caliber .45, M1911 for the original Model of 1911 or Automatic Pistol, Caliber .45, M1911A1 for the M1911A1, adopted in 1924. The designation changed to Pistol, Caliber .45, Automatic, M1911A1 in the Vietnam era. In total, the United States procured around 2.7 million M1911 and M1911A1 pistols in military contracts during its service life. The M1911 was replaced by the M9 pistol as the standard U.S. sidearm in the early 1990s, but due to its popularity among users, it has not been completely phased out. Modern M1911 variants are still in use by some units within the U.S. Army Special Forces, the U.S. Navy and U.S. Marine Corps.

Designed by John Browning, the M1911 is the best-known of his designs to use the short recoil principle in its basic design. The pistol was widely copied, and this operating system rose to become the preeminent type of the 20th century and of nearly all modern centerfire pistols. It is popular with civilian shooters in competitive events such as USPSA, IDPA, International Practical Shooting Confederation, and Bullseye shooting. Compact variants are popular civilian concealed carry weapons, because of the design's inherent slim width and the power of the .45 ACP cartridge.

M1911 pistol

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United States Pistol, Caliber .45, M1911
M1911 A1 pistol
Colt Model 1911A1 of the U.S. Army
Type    Semi-automatic pistol
Place of origin    Flag of the United States (1908-1912).svg United States
Service history
In service    1911–present
Used by    28 nations, see Users below for details
Wars    As standard U.S. service pistol:

World War I
World War II
Korean War
Vietnam War
In non-standard use:
Gulf War
War in Afghanistan
Iraq War
Production history
Designer    John Browning
Designed    1911 and 1924 (A1)
Number built    Over 2.7 million
Variants    M1911A1
M1911A2[2]
RIA Officers
Specifications
Weight    2.44 lb (1,105 g) empty, w/magazine
Length    8.25 in (210 mm)[1]
Barrel length    Government model: 5.03 in (127 mm)

Commander model: 4.25 in (108 mm)
Officer's ACP model: 3.5 in (89 mm)
Cartridge    .45 ACP (11.43 mm)
Action    Short recoil operation[1]
Muzzle velocity    825 ft/s (251 m/s)
Feed system    7-round standard detachable box magazine

Description
The M1911 is a single-action, semi-automatic, magazine-fed, recoil-operated pistol chambered for the .45 ACP cartridge, which served as the standard-issue sidearm for the United States armed forces from 1911 to 1985. It was first used in later stages of the Philippine-American War, and was widely used in World War I, World War II, the Korean War, and the Vietnam War. The M1911 is still carried by some U.S. forces. Its formal designation as of 1940 was Automatic Pistol, Caliber .45, M1911 for the original Model of 1911 or Automatic Pistol, Caliber .45, M1911A1 for the M1911A1, adopted in 1924. The designation changed to Pistol, Caliber .45, Automatic, M1911A1 in the Vietnam era. In total, the United States procured around 2.7 million M1911 and M1911A1 pistols in military contracts during its service life. The M1911 was replaced by the M9 pistol as the standard U.S. sidearm in the early 1990s, but due to its popularity among users, it has not been completely phased out. Modern M1911 variants are still in use by some units within the U.S. Army Special Forces, the U.S. Navy and U.S. Marine Corps.

Designed by John Browning, the M1911 is the best-known of his designs to use the short recoil principle in its basic design. The pistol was widely copied, and this operating system rose to become the preeminent type of the 20th century and of nearly all modern centerfire pistols. It is popular with civilian shooters in competitive events such as USPSA, IDPA, International Practical Shooting Confederation, and Bullseye shooting. Compact variants are popular civilian concealed carry weapons, because of the design's inherent slim width and the power of the .45 ACP cartridge.

M1911 pistol

Comments
Share
United States Pistol, Caliber .45, M1911
M1911 A1 pistol
Colt Model 1911A1 of the U.S. Army
Type    Semi-automatic pistol
Place of origin    Flag of the United States (1908-1912).svg United States
Service history
In service    1911–present
Used by    28 nations, see Users below for details
Wars    As standard U.S. service pistol:

World War I
World War II
Korean War
Vietnam War
In non-standard use:
Gulf War
War in Afghanistan
Iraq War
Production history
Designer    John Browning
Designed    1911 and 1924 (A1)
Number built    Over 2.7 million
Variants    M1911A1
M1911A2[2]
RIA Officers
Specifications
Weight    2.44 lb (1,105 g) empty, w/magazine
Length    8.25 in (210 mm)[1]
Barrel length    Government model: 5.03 in (127 mm)

Commander model: 4.25 in (108 mm)
Officer's ACP model: 3.5 in (89 mm)
Cartridge    .45 ACP (11.43 mm)
Action    Short recoil operation[1]
Muzzle velocity    825 ft/s (251 m/s)
Feed system    7-round standard detachable box magazine