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A Sturmgewehr 44 with 90 degree Krummlauf The Krummlauf on display at the Bundeswehr Museum of German Defense Technology in Koblenz, Germany.. The Krummlauf (English: "curved barrel") is a bent barrel attachment for the Sturmgewehr 44 (StG 44) rifle developed by Germany in World War II.
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.
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, or Alemite fitting 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.
A center punch forms a large enough dimple to "guide" the tip of the drill. The tip of a center punch has an angle between 60 and 90 degrees. [1] When drilling larger holes, where the drill bit is wider than the indentation produced by a center punch, the drilling of a pilot hole is usually needed.
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The practice of "jungle style" magazines originated in World War II for the M1 carbine, [2] M3 "Grease Gun", [3] and Thompson submachine gun. [4] Audie Murphy, one of the most decorated American combat soldiers of World War II, was reported to have utilized taped M1 carbine magazines.
The designers of the American M3 "Grease Gun" examined British Sten guns and captured MP 40s for usable construction details. The folding stock became the model for those on later weapons, such as the Soviet PPS-43 and the AKS version of the AK-47. The MP 40 magazine can also be used in the Belgian Vigneron submachine gun.