M1911 pistol
semi-automatic pistol with caliber .45, standard service pistol of the US Army from 1911 to 1985; produced also by a large number of other weapons companies apart from original manufacturer Colt
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.
History
Early history and adaptations
The M1911 pistol originated in the late 1890s as the result of a search for a suitable self-loading (or semi-automatic) pistol to replace the variety of revolvers in service at the time. The United States was rapidly adopting new firearms; several new pistols and two all-new service rifles (M1892/96/98 Krag and M1895 Navy Lee), as well as a series of revolvers by Colt and Smith & Wesson for the Army and Navy, were adopted within this decade.
The next decade would see a similar pace, including the adoption of several more revolvers and an intensive search for a self-loading pistol, culminating in the official adoption of the M1911 after the turn of the decade. Hiram S. Maxim had designed a self-loading rifle in the 1880s, but was preoccupied with machine guns. Nevertheless, the application of his recoil-energy reloading principle led to several self-loading pistols in 1896. The designs caught the attention of various militaries, each of which began programs to find a suitable one for their forces. In the U.S., such a program would lead to a formal test at the turn of the 20th century.
During the end of 1899 and into 1900, a test of self-loading pistols was conducted, including entries from Mauser (C96 "Broomhandle"), Mannlicher (Mannlicher M1894), and Colt (Colt M1900). This led to a purchase of 1,000 DWM Luger pistols, chambered in 7.65mm Luger.
Begin with the source’s own compact description: “M1911 pistol” is semi-automatic pistol with caliber .45, standard service pistol of the US Army from 1911 to 1985; produced also by a large number of other weapons companies apart from original manufacturer Colt. The dossier treats that line as a proposition to test through M1911, pistol and semi-automatic, not as a finished interpretation.
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The phrase “semi-automatic pistol with caliber .45, standard service pistol of the US Army from 1911 to 1985; produced also by a large number of other weapons companies apart from original manufacturer Colt” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 8, 2026. The linked authority identifier is Q201419. The Library of Congress control number is sh2011003462. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1911, 1896, 1899 and 1900.
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This entry incorporates text from “M1911 pistol” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.