The M3 is an American .45 caliber submachine gun that uses the .45 ACP (11.43x23mm ACP) pistol cartridge. It entered US Army service on December 12, 1942 as the United States Submachine Gun, Cal. .45, M3 and began to replace the .45 caliber Thompson series submachine guns: the M1928A1, M1 and M1A1 that were slowly being withdrawn from use. The weapon’s designer was G. Hyde, while F. Sampson – GMC’s Inland Division chief engineer – was responsible for preparing and organizing production. Even at the development stage, the weapon’s design was focused on simplified production, ease of use and the ability to convert the weapon to the 9x19mm Parabellum pistol cartridge. The weapon is commonly referred to as the "grease gun", owing to its similarity in appearance to the common mechanic's tool.
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| rdf:type
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| rdfs:label
| - M3 Submachine Gun
- M3 submachine gun
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| rdfs:comment
| - The M3 is an American .45 caliber submachine gun that uses the .45 ACP (11.43x23mm ACP) pistol cartridge. It entered US Army service on December 12, 1942 as the United States Submachine Gun, Cal. .45, M3 and began to replace the .45 caliber Thompson series submachine guns: the M1928A1, M1 and M1A1 that were slowly being withdrawn from use. The weapon’s designer was G. Hyde, while F. Sampson – GMC’s Inland Division chief engineer – was responsible for preparing and organizing production. Even at the development stage, the weapon’s design was focused on simplified production, ease of use and the ability to convert the weapon to the 9x19mm Parabellum pistol cartridge. The weapon is commonly referred to as the "grease gun", owing to its similarity in appearance to the common mechanic's tool.
- Mike Sullivan found the M3 or Grease Gun superior to his M-1 in the close-quarter fighting he was facing in the Pacific theater. The principle was simple, spray around a lot of lead and you would hit something dangerous to you. He picked one up on Iwo Jima and used it for the rest of World War II.
- The M3 (also known as Grease Gun) Was a submachine gun developed by United States during WWII as a cheaper substitute for Tommy Gun. Due to its format was nicknamed "Grease Gun". A version with silencer of M3 was also used during Vietnam War by teams of Navy SEALs.
- The M3 is an American .45 caliber submachine gun that uses the .45 ACP (11.43x23mm ACP) pistol cartridge. It entered US Army service December 12 1942 as the United States Submachine Gun, Cal. .45, M3 and began to replace the .45 caliber Thompson series submachine guns: the M1928A1, M1 and M1A1 that were slowly being withdrawn from use. The weapon’s designer was G. Hyde, while F. Sampson – GMC’s Inland Division chief engineer – was responsible for preparing and organizing production. Even at the development stage, the weapon’s design was focused on simplified production, ease of use and the ability to convert the weapon to the 9x19mm Parabellum pistol cartridge. The weapon is commonly nicknamed the "grease gun," owing to its similarity in appearance to the common mechanic's tool.
- The M3 was created by George Hyde. It was designed to be a cheaper alternative to the Thompson Submachine Gun. The M3 fired the .45 ACP Cartridge and had a magazine capacity of thirty rounds. The fact that it was just stamped metal parts built together made it far less complicated to build over the Thompson. The M3 could only fire on fully automatic and had a rate of fire of about 450 rounds per minute. It also had a weight of about 3.70 kilograms and a length of 57 centimeters without the extended stock. The M3 was named the "Grease Gun" for its resemblance to a mechanic's tool.
- The M3 was an American .45-caliber submachine gun adopted for U.S. Army service on 12 December 1942, as the United States Submachine Gun, Cal. .45, M3. The M3 was a superior alternative to the Thompson submachine gun. In brief, the M3 was cheaper to produce, fired more accurately, had a lighter composition, and fired the equivalent 0.45 caliber bullet. The M3 was commonly referred to as the "Grease Gun" or simply "the Greaser", owing to its visual similarity to the mechanic's tool.
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| Length
| - stock extended / stock collapsed
- stock retracted / stock extended
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| dbkwik:military/pr...iPageUsesTemplate
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| dbkwik:publicsafet...iPageUsesTemplate
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| dbkwik:vietnam-war...iPageUsesTemplate
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| dbkwik:world-war-2...iPageUsesTemplate
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| Number
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| Range
| - 100 m
- Sights fixed to
- Sights set to 100 yards
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| Velocity
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| Rate
| - 350(xsd:integer)
- 450(xsd:integer)
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| emptyweight
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| Service
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| Name
| - M3 Submachine Gun
- M3 submachine gun
- Submachine Gun, Cal. .45, M3
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| Type
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| Caption
| - M3
- World War II era Guide Lamp M3 submachine gun with 30-round magazine and other accessories. The Buffalo Arms bolt in this original M3 is dated January 1944.
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| Unit Cost
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| Cartridge
| - 0(xsd:double)
- 9(xsd:integer)
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| Wars
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| Weight
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| Caliber
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| Manufacturer
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| Sights
| - Fixed peep sight and blade foresight
- Fixed rear peep sight and blade foresight, calibrated to 100 yards for caliber .45 M1911 ball ammunition
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| Used by
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