Editing M1911 pistol (section)

===Colt-produced models===
[[File:Colt1991A1ORM-01.JPG|thumb|right|A Colt M1991A1 Compact ORM pistol]]
[[File:Colt1991A1ORM-02.JPG|thumb|right|A Colt M1991A1 Compact ORM pistol with slide locked back to expose bull barrel]]
{| class="wikitable"
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!Model
!Era
!Description
!References
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|Colt Commander
|1949 - present
|In 1949 Colt began production of the Colt Commander, an aluminum-framed 1911 with a {{Frac|4|1|4}} inch barrel and a rounded hammer. It was developed in response to an Army requirement issued in 1949, for a lighter replacement for the M1911 pistol, for issue to officers. 
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|Colt Combat Commander
|1970 - present
|In 1970, Colt introduced the all-steel "Colt Combat Commander", with an optional model in satin nickel. To differentiate between the two models, the aluminum-framed model was renamed the "Lightweight Commander".
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|Colt Government Mk. IV Series 70
|1970 - 1983
|Introduced the accurized Split Barrel Bushing (collet bushing). The first 1000 prototypes in the serial number range 35800NM–37025NM were marked BB on the barrel and the slide. Commander-sized pistols retained the solid bushing.
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|Colt Government Mk. IV Series 80
|1983 -present
|Introduced an internal firing pin safety and a new half-cock notch on the sear; pulling the trigger on these models while at half-cock will cause the hammer to drop. Models after 1988 returned to the solid barrel bushing due to concerns about breakages of collet bushings.
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|Colt Gold Cup National Match 1911/Mk. IV Series 70/Mk. IV Series 80
| rowspan="2" |1983 - 1996
|MKIV/Series 70 Gold Cup 75th Anniversary National Match/Camp Perry 1978. Limited to 200 pistols. 
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|Gold Cup MKIV Series 80 National Match
|Colt-Elliason adjustable rear sight, fully adjustable Bomar-Style rear sight, target post front sight, spur hammer, wide target trigger, lowered and flared ejection port, National Match barrel, beveled top slide, wrap-around rubber stocks with nickel medallion.
|<ref>{{cite web |date=28 July 2011 |title=The National Match .45 ACP Pistols |url=http://sightm1911.com/lib/history/nm.htm |website=sightm1911.com}}</ref>
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|Colt 1991 Series 
|1991 - 2001 ORM; 2001 - present NRM
|A hybrid of the M1911A1 military model redesigned to use the slide of the Mk. IV Series 80; these models aimed at providing a more "[[Military grade|mil-spec]]" pistol to be sold at a lower price than Colt's other 1911 models in order to compete with imported pistols from manufacturers such as Springfield Armory and Norinco. The 1991–2001 model used a large "M1991A1" roll mark engraved on the slide. The 2001 model introduced a new "Colt's Government Model" roll mark engraving. The 1991 series incorporates full-sized blued and stainless models in either .45 ACP or .38 Super, as well as blued and stainless Commander models in .45 ACP.
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