Colt M16 Manual - The Colt Cobra is a lightweight, aluminum-framed, double-action short-barrelled revolver, not to be confused with the Colt King Cobra.The Cobra was chambered in .38 Special, .38 New police, .32 Colt New Police, and .22 LR.It holds six shots of ammunition and was sold by Colt from 1950 until 1981. In December 2016, it was announced that Colt would be producing a new run of the Colt Cobra with a. The M1911, also known as the "Government" or "Colt Government", is a single-action, semi-automatic, magazine-fed, recoil-operated pistol chambered for the .45 ACP cartridge. It served as the standard-issue sidearm for the United States Armed Forces from 1911 to 1986. It was widely used in World War I, World War II, the Korean War, and the Vietnam War.The pistol's formal designation as of 1940.