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The M3 is an American .45-caliber submachine gun adopted by the U.S. Army on 12 December 1942, as the United States Submachine Gun, Cal. .45, M3. [12] The M3 was chambered for the same .45 ACP round fired by the Thompson submachine gun , but was cheaper to mass produce and lighter, at the expense of accuracy. [ 12 ]
A grease gun (pneumatic) A grease gun is a common workshop and garage tool used for lubrication. The purpose of the grease gun is to apply lubricant through an aperture to a specific point, usually from a grease cartridge to a grease fitting or 'nipple'. The channels behind the grease nipple lead to where the lubrication is needed.
Operators of the unit could push grease into blocked or "frozen" fittings and the unit allowed for work in confined areas. The first lever grease gun, the Model 1042, was introduced during the war. It was so popular, it led to the standardization of grease tubes (400 g or 14 oz) to fit the device.
Grease fitting on a bearing A grease nipple on the driver's door of a 1956 VW Beetle. A grease fitting, grease nipple, Zerk fitting, grease zerk, Alemite fitting, or divit is a metal fitting used in mechanical systems to feed lubricants, usually lubricating grease, into a bearing under moderate to high pressure using a grease gun.
Submachine gun Czechoslovakia: Škorpion [1].32 ACP: Submachine gun Czechoslovakia: Heckler & Koch MP5 [4] 9×19mm: Submachine gun West Germany: MP5A3 used by Black Wasp (Cuban Special Forces) Uzi [5] 9×19mm: Submachine gun Israel: Star Model Z-45 [6] 9×23mm: Submachine gun Spain: M3 Grease Gun [7] 9×19mm: Submachine gun United States: M3 ...
In the 1950s, the FMAP DM (Fábrica Militar de Armas Portables Domingo Matheu), belonging to the Dirección General de Fabricaciones Militares, acquired the production rights of a copy of the U.S. M3 A1 submachine gun, more commonly known as the "Grease Gun". This Argentinian version was chambered for 9×19mm cartridges, as opposed to the .45 ...
Responding to a request for further simplification, the M1 was standardized in April 1942 as the United States Submachine Gun, Cal. .45, M1. Rate of fire was reduced to approximately 600–700 rpm. First issued in 1943, the M1 uses a simple blowback operation, with the charging handle moved to the side. The flip-up adjustable Lyman rear sight ...
These are used in caulking guns, which typically have a trigger connected to a rod which pushes the plunger, and has a ratchet to prevent backlash. The push rod may also be actuated by a motor or by compressed air. Similar mechanisms are used for grease guns. [6] For smaller applications, caulk may be distributed in squeeze tubes. [6]