The Colt Model 1910 was a prototype semi-automatic pistol chambered for the .45 ACP cartridge, designed by John Browning and built by Colt's Manufacturing Company as a revision of his earlier Colt Model 1909. The United States Department of War had rejected the 1909 design because the Cavalry thought it too complicated for enlisted troops and because it lacked a safety. In the 1910 version Browning changed the grip angle from 84 to 74 degrees so the pistol pointed more naturally from an outstretched hand, moved the extractor inside the slide, and left Colt's production pistol without a built-in safety, while devising a simple external safety that could be fitted later and released with the thumb. Browning showed it to Colonel John T. Thompson of the Army Ordnance Corps on 9 February 1910 and it developed ejection trouble, but in the Springfield Armory trials of November 1910 it suffered 12 malfunctions against 43 for the competing Savage Model 1907. The Secretary of War approved Browning's design as the Army's new sidearm by 29 March 1911.
Facts
Classification
Service StatusPrototype or Experimental 1 Weapon Class
Weapon Class (category) Introduced Year In the Other Atlases
Manufactured By
Also in Business Atlas: the manufacturer of this subject.
Source Colt Model 1910 (Wikipedia)Design sectionQuote, Design section
The M1910 was not manufactured with a mechanical safety mechanism by Colt
Sources
1. Colt Model 1910 (Wikipedia)
Lead sentence
was a prototype .45 ACP caliber automatic pistol
History, first paragraph
On February 9, 1910, Browning demonstrated the new Model 1910 design
Lead sentence [caliber]
.45 ACP caliber automatic pistol
Design section
The M1910 was not manufactured with a mechanical safety mechanism by Colt
In Group: Semi-Automatic Pistols of the United States, Infobox: type
Semi-automatic pistol
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