KWC

KWC may refer to:

IMI Desert Eagle

The IMI Desert Eagle is a semi-automatic handgun notable for chambering the largest centerfire cartridge of any magazine fed, self loading pistol. It has a relatively unique design with a triangular barrel and large muzzle. MRI is the most recent company to design and develop the Desert Eagle, having done so for more than 25 years. The design was refined and the actual pistols were manufactured by Israel Military Industries until 1995, when MRI shifted the manufacturing contract to Saco Defense in Saco, Maine. In 1998, MRI moved manufacturing back to IMI, which later reorganized under the name Israel Weapon Industries. Since 2009, the Desert Eagle Pistol has been produced in the United States at MRI's Pillager, MN facility. Kahr Arms acquired Magnum Research in the middle of 2010. The Desert Eagle has been featured in roughly 500 motion pictures and TV films, along with several video games (especially the Resident Evil series, Counter-Strike series, Grand Theft Auto series), and Call Of Duty series, making it well known in popular culture.

Carbon dioxide

Carbon dioxide (chemical formula CO₂) is a colorless and odorless gas vital to life on Earth. This naturally occurring chemical compound is composed of a carbon atom covalently double bonded to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 0.04 percent (400 ppm) by volume. Natural sources include volcanoes, hot springs and geysers and it is freed from carbonate rocks by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, in ice caps and glaciers and also in seawater. It is present in deposits of petroleum and natural gas.

Atmospheric carbon dioxide is the primary source of carbon in life on Earth and its concentration in Earth's pre-industrial atmosphere since late in the Precambrian was regulated by photosynthetic organisms and geological phenomena. As part of the carbon cycle, plants, algae, and cyanobacteria use light energy to photosynthesize carbohydrate from carbon dioxide and water, with oxygen produced as a waste product.

Makarov pistol

The Makarov pistol or PM (Russian: Пистолет Макарова, Pistolet Makarova, literally Makarov's Pistol) is a Russian semi-automatic pistol. Under the project leadership of Nikolay Fyodorovich Makarov, it became the Soviet Union's standard military and police side arm from 1951 to 1991.

Development

The Makarov pistol resulted from a design competition for replacing the Tokarev TT-33 semi-automatic pistol and the Nagant M1895 revolver. Rather than building a pistol to an existing cartridge in the Soviet inventory, Nikolai Makarov took up the German wartime Walther "Ultra" design, fundamentally an enlarged Walther PP, utilizing the 9×18mm Makarov cartridge designed by B.V. Semin in 1946. For simplicity and economy, the Makarov pistol was of straight blowback operation, with the 9×18mm Makarov cartridge being the most powerful cartridge it could safely fire. The Luftwaffe had rejected this pistol design some years before because of its poor accuracy. Although the nominal calibre was 9.0 mm, the actual bullet was 9.22 mm in diameter, being shorter and wider and thus incompatible with pistols chambered for 9×19mm Parabellum cartridges.