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Colt 9mm SMG
The Colt 9mm SMG is a 9×19mm Parabellum submachine gun built on the M16 rifle platform by Colt's Manufacturing Company, with the standard R0635 model introduced in 1985.
Colt Anaconda
The Colt Anaconda is a six-shot, large-frame .44 Magnum revolver made by Colt from 1990 to 2003 and again from 2021, the last of its snake guns.
Colt AR-15
The Colt AR-15, also known as the AR-15 Sporter, is the semi-automatic civilian version of the AR-15 rifle manufactured by Colt's Manufacturing Company of Hartford, Connecticut.
Colt Army Model 1860
The Colt Army Model 1860 is a .44 caliber six-shot percussion revolver made by Colt in Hartford from 1860 to 1873, the Union Army's primary Civil War revolver.
Colt Canada C19
The Colt Canada C19 is a bolt-action .308 Winchester rifle that replaced the Lee Enfield No. 4 as the standard service rifle of the Canadian Rangers in 2018.
Colt Detective Special
The Colt Detective Special is a six-shot, double-action snubnose revolver introduced by Colt in 1927, the first commercial snubnose revolver, chambered for .38 Special and favored by detectives.
Colt Dragoon Revolver
The Colt Dragoon Revolver is a .44 caliber, six-shot single-action percussion revolver designed by Samuel Colt in 1848 as a lighter refinement of the massive 1847 Colt Walker.
Colt IAR6940
The Colt IAR6940, also known as the Colt IAR, is a 5.56×45mm NATO magazine-fed automatic rifle built by Colt on the M4A1 platform, adopted by Singapore's army in 2023.
Colt M1892
The Colt M1892, formally the Colt Double-Action Army Model 1892 and called the New Army and Navy revolver, was the first swing-out-cylinder revolver issued to the US military.
Colt Model 1903 Pocket Hammerless
The Colt Model 1903 Pocket Hammerless, or Colt Pocket Hammerless, is a .32 ACP pocket pistol designed by John M. Browning and made by Colt from 1903 to 1945.
Colt New Service
The Colt New Service is a large-frame, six-shot double-action revolver Colt introduced in 1898; about 357,000 were made, including the U.S. military's Model 1909 and Model 1917.
Colt Official Police
The Colt Official Police, formerly the Colt Army Special, is a six-shot, double-action revolver made by Colt from 1927 to 1969, widely used by police departments and the FBI.
Colt Paterson
The Colt Paterson, also known as the Paterson revolver, was the first commercially produced revolver, a five-shot percussion pistol made in Paterson, New Jersey, from 1836 to 1842.
Colt Python
The Colt Python is a six-shot, double-action revolver made by Colt of Hartford, Connecticut, chambered in .357 Magnum and first shipped in 1955, considered one of the finest production revolvers ever made.
Colt Single Action Army
The Colt Single Action Army, also known as the Peacemaker and Model P, is a six-shot revolver Colt introduced in 1873 as the US Army's standard sidearm.
Colt Walker
The Colt Walker is a .44 caliber, six-shot percussion revolver manufactured in 1847 at Eli Whitney Jr.'s Connecticut armory, and the first revolver purchased by the Army Ordnance Department, saving Colt's firearms business.
Colt-Burgess rifle
The Colt-Burgess rifle was a lever-action repeating rifle made by Colt from 1883 to 1885, designed by Andrew Burgess as a direct challenge to Winchester's Model 1873.
Colt's Manufacturing Company
Colt's Manufacturing Company, known as Colt Firearms, is an American firearms maker founded by Samuel Colt in 1836 and owned by the Czech Colt CZ Group since 2021.
Columbia Basin Project
The Columbia Basin Project is a federal Bureau of Reclamation project in east central Washington that pumps Columbia River water from Grand Coulee Dam to irrigate about 671,000 acres.
Columbia Center
Columbia Center is a 76-story office skyscraper at 701 Fifth Avenue in downtown Seattle. Opened in 1985, it is the tallest building in Seattle and the Pacific Northwest.
Columbia Energy Center
Columbia Energy Center is a two-unit, 1,112 MW coal-fired power station south of Portage, Wisconsin, online since 1975 and 1978, jointly owned by Alliant Energy, Madison Gas and Electric, and Wisconsin Public Service.
Columbia Gas Transmission
Columbia Gas Transmission is an interstate natural gas pipeline and storage system in the eastern United States, founded in 1906 and owned by TC Energy since 2016.
Columbia Generating Station
Columbia Generating Station is a nuclear power plant near Richland, Washington, operated by Energy Northwest, the Pacific Northwest's only commercial nuclear facility and Washington's third largest electricity generator.
Columbia River Treaty
The Columbia River Treaty is a 1961 agreement between Canada and the United States, ratified in 1964, that coordinates flood control and hydroelectric power generation in the Columbia River Basin.
Columbian (locomotive)
The Columbian was a 2-4-2 steam locomotive wheel arrangement, named for the 1893 World's Columbian Exposition in Chicago and best known from a single experimental Baldwin compound.
Columbus oil field
Columbus is a gas condensate field in the UK Central North Sea, about 230 km east of Aberdeen, discovered in 2006 and operated by Serica Energy since.
Column
A column is a vertical structural element that carries loads from beams, slabs, or arches down its shaft into the foundation; in classical architecture it has a capital, shaft, and usually a base.
Column generation
Column generation is an optimization method that solves linear programs with very many variables by iteratively adding useful columns, used for cutting stock and vehicle routing.
Columnar storage
Columnar storage (column store, Decomposed Storage Model) lays each table column's values contiguously on disk, unlike row stores. It powers OLAP with 5-10x compression, zone maps, predicate pushdown, late materialization; Parquet, ORC, Arrow; weak for writes and full-row reads.
Colville River Oil and Gas Field
The Colville River oil and gas field is a ConocoPhillips unit on the western Alaska North Slope whose core asset, the Alpine Field, began producing oil in 2000.