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U.S. pistol caliber .45 M1911A1, submachine gun caliber .45 M3A1, u.s. carbine, caliber .30 M1. mechanical characteristics, operation, and use in combat. A bit fuzzy, but very interesting film, demonstrates, for example, the different results from the impact of the Colt .45 caliber automatic bullet and the .30 caliber M1 carbine bullet.
US Army film bulletin FB-273
The M1911 is a single-action, semi-automatic, magazine-fed, and recoil-operated handgun chambered for the .45 ACP cartridge. John M. Browning designed the firearm which was the standard-issue side arm for the United States armed forces from 1911 to 1985. The M1911 is still carried by some U.S. forces. It was widely used in World War I, World War II, the Korean War, and the Vietnam War. 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.
The M1911 is the best-known of John Browning’s designs to use the short recoil principle in its basic design. Besides the pistol being widely copied itself, 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 also popular civilian concealed carry weapons, because of the design’s inherent slim width and the power of the .45 ACP cartridge.
The M1 carbine (formally the United States Carbine, Caliber .30, M1) is a lightweight, easy to use semi-automatic carbine that became a standard firearm for the U.S. military during World War II, the Korean War and the Vietnam War, and was produced in several variants. It was widely used by U.S. and foreign military, paramilitary and police forces, and has also been a popular civilian firearm.
In selective fire versions capable of fully automatic fire, the carbine is designated the M2 carbine. The M3 carbine was an M2 with an active infrared scope system. Unlike conventional carbines, which are generally a version of a parent rifle with a shorter barrel (like the earlier .30-40 U.S. Krag rifle and carbine and the later M16A2 rifle and M4 carbine), the M1 carbine has only one part in common with the M1 rifle (a short buttplate screw) and fires a different cartridge.
The M3 was an American .45-caliber submachine gun adopted for U.S. Army service on 12 December 1942, as the United States Submachine Gun, Cal. .45, M3. The M3 was designed as a more cost-effective alternative to the Thompson, optimized for mass production. The M3 was commonly referred to as the “Grease Gun” or simply “the Greaser,” owing to its visual similarity to the mechanic’s tool.
Intended as a replacement for the .45-caliber Thompson series of submachine guns, the M3 and its improved successor, the M3A1 began to replace the Thompson in first-line service in late 1944 and early 1945. Due to delays caused by production issues and approved specification changes, the M3 / M3A1 saw relatively little combat use in World War II.
M1911, M1911A1, .45 automatic, Colt 45, M1, M1 carbine, M3, M3A1, submachine gun, US Army, infantry, weapon, infantry weapon, small arms, .30 caliber, .45 caliber, carbine, handgun,