M3 Submachine Gun

©2012 Soldiers Memorial


Type: Fully Automatic
Caliber: .45
Weight: 8 lbs
Barrel Length: 8 in.
Magazine: 30 round
Rate of Fire: 450 rpm



  • A simple, robust, cheap, and adequate weapon favored by paratroopers and tankers.
  • Nicknamed the "grease gun," as it looked similar in appearance to a mechanic's grease gun.
  • Produced in 1943 as a low-cost substitute for the Thompson submachine gun ("Tommy Gun"), featured improvements such as a wire stock that doubled as a screwdriver and cleaning rod.
  • Very combat-friendly in that expanded clearance between bolt and receiver prevented dirt from jamming the gun.
  • Continued to be used by the U.S. Army through the conflicts in Korea, Vietnam, and by some unites in the First Gulf War.
  •  Though featuring many improvements and modifications, the M3 still is used as a primary weapon by the Philippine Marine Corps. 
References:
Fowler, Will, Anthony North, and Charles Stronge. 2011. The Illustrated Encyclopedia of
Pistols, Revolvers, and Submachine Guns. Leicestershire, UK: Hermes House.
Miller, David. 2011. The Illustrated Directory of Guns: A Collector’s Guide to Over 1500
Military, Sporting, and Antique Firearms. Kent, UK: Pepperbox Press Ltd.