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  2. Grease gun - Wikipedia

    en.wikipedia.org/wiki/Grease_gun

    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.

  3. Grease fitting - Wikipedia

    en.wikipedia.org/wiki/Grease_fitting

    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.

  4. M3 submachine gun - Wikipedia

    en.wikipedia.org/wiki/M3_submachine_gun

    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. [13] 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. [ 13 ]

  5. Caliber conversion device - Wikipedia

    en.wikipedia.org/wiki/Caliber_conversion_device

    A .32 ACP FMJ cartridge, a .32 ACP FMJ cartridge in a blued .303 British supplemental chamber, and a .303 British FMJ cartridge (left to right) A caliber conversion device is a device which can be used to non-permanently alter a firearm to allow it to fire a different cartridge than the one it was originally designed to fire.

  6. M16 rifle - Wikipedia

    en.wikipedia.org/wiki/M16_rifle

    The M16 and 5.56×45mm cartridge was tested and approved with the use of a DuPont IMR8208M extruded powder, which was switched to Olin Mathieson WC846 ball powder which produced much more fouling, which quickly jammed the action of the M16 (unless the gun was cleaned well and often).

  7. Powder-actuated tool - Wikipedia

    en.wikipedia.org/wiki/Powder-actuated_tool

    As with their air-actuated cousins, powder-actuated guns have a muzzle safety interlock. If the muzzle is not pressed against a surface with sufficient force, the firing pin is blocked and cannot reach the load to fire it. This helps ensure that the gun does not discharge in an unsafe manner, causing the nail to become an unrestrained projectile.

  8. Tubes and primers for ammunition - Wikipedia

    en.wikipedia.org/wiki/Tubes_and_primers_for...

    With quick firing guns (those using metallic cartridge cases) the case itself is fitted with the igniting medium; in England these are called primers. For small guns the case contains a percussion primer, usually a copper cap filled with a chlorate mixture and resting against an anvil. [2] The striker of the gun strikes the cap and fires the ...

  9. Wax bullet - Wikipedia

    en.wikipedia.org/wiki/Wax_bullet

    Specially designed cartridges and conversion kits can be used together to convert semi-/fully automatic firearms into wax bullet guns, used in tactical training for police and military. Wax bullets have been in use for over a century in military training, target shooting and confrontational shooting competitions where using real metallic ...