The Colt Model 1911 explained - HLebooks.com

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Content

Development of the .45 ACP caliber cartridge

- Adaptation of the Model 1902 "Military" in .45 caliber
- The weakness of the barrel links
- The question of the most suitable caliber for a military pistol
- The conclusions drawn from the experiments
- The essential features in a service handgun

Colt pistol Model 1905 in .45 caliber
- The Colt Model 1905 specific features
- In early 1907, a new variation
- English official tests
- Variations & Serial numbers of the Colt Model 1905

U.S. Army official tests of 1907
- Nine constructors submitted models
- Luger pistol in .45 ACP caliber
- Savage pistol in .45 ACP caliber
- A modified version of the Model 1905
- Several modifications of the Colt 1905 required
- A loaded chamber indicator and a grip safety

Colt Model 1909
- Description of the Model 1909
- Phantom view of the Model 1909
- Operation of the Model 1909
- Experimental thumb safeties
- Phantom view of the Browning thumb safety

Colt Model 1910
- Description of the Model 1910
- Salient features of the Model 1910

Adoption of the Colt Model 1911
- Modification of the barrel locking lugs
- A first call for 30,262 pistols
- The right to produce the pistol at Springfield Armory
- The holster

1912 changes and improvements
- Content and locations of the markings
- Major Walter G. Penfield
- "UNITED STATES PROPERTY" marking
- Checkering of the slide stop
- The head of the fastening screws of the grip plates
- Modifications of the magazine catch lock
- New design of the sear and safety spring
- Magazine modifications
- The magazine shell issue
- Magazine hardening and blueing
- Mainspring housing pin
- Recoil spring plug
- Marking changes

1913 -1914 changes and improvements
- Rear Sight Changes
- Experimental Slide Stop
- Hammer modifications
- Modifications of the safety lever
- Changes in the slide markings

1915 -1918 changes and improvements
- Differences between Colt made and Springfield made 1911's
- The recoil spring guide
- The new mainspring
- The magazine lanyard loop
- N.R.A. Pistols
- The grip milling
- The firing pin retainer
- The Forward slide profile
- The safety lever
- Marking changes
- Ordnance department inspectors
- Sub-inspection markings
- Colt assembler's markings
- Production board of the Model 1911 produced by Colt

Springfield Armory & Remington
- Springfield Armory specific markings
- List of the "S" marked parts
- The Springfield magazine
- Board of Springfield Model 1911 production
- Remington-UMC contract
- Remington's production of Models 1911
- Remington specific markings
- Inspection Markings at Remington
Commercial production & British contracts
- The commercial version of the Model 1911
- The commercial serialization
- Board of the commercial production until 1923
- British contracts
- The J.P. Morgan business
- Main foreign countries who acquired Model 1911 prior to 1919
- Great Britain's purchases of Model 1911
- Dispatching of the Models 1911 purchased by Great Britain
- The Model 1911 in caliber .455 Webley
- English markings
- Caliber .455 magazines
- English procurements of Colt Model 1911 in caliber .455

Other foreign contracts
- Argentina was the largest purchaser in South America
- Canadian procurements of Model 1911 pistols
- Norwegian procurements and local production
- The Imperial Russia was the biggest foreign purchaser

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