Special Report

18 American-Made Military Guns of the 1940s

Public Domain / Wikimedia Commons

World War II was a global conflict that started in 1939 and ended in 1945. In these short years, most of the world’s nations would be pulled into what is known as the deadliest conflict in human history. Although it began with the German invasion of Poland and cavalry units on horseback, it ended with the dropping of the first atomic bombs. Military innovation over these years was at light speed, and much of this was reflected in the guns of the time. (These are the 18 newest guns currently in use by the U.S. military.)

Here 24/7 Wall St. is taking a closer look at American-made guns during the World War II era. To identify American military guns introduced in the 1940s, 24/7 Wall St. reviewed a catalog of small arms from Military Factory, an online database of military vehicles, arms and aircraft. We ordered these guns alphabetically. We included supplemental information regarding type of small arm, year introduced, manufacturer, firing action, caliber and feed.

One of the most iconic guns to come from this era was the M1 Carbine. Over 6.5 million of these guns were produced during World War II, making it the most mass-produced American small arm of this conflict. It would go on to serve in the Korean War and see some time in the Vietnam War.

The M1 Carbine has a maximum effective range of 600 ft. and a muzzle velocity of 1,970 ft. per second. It typically comes with iron front and rear sights but it can be outfitted with higher-end optics.

Newer iterations of the gun would come later in the decade with the M2 and M3 Carbines building on this basic design. These newer models would be more specialized as well, opting for improved scopes to account for increased range. (These are 30 American military guns of the 2000s.)

Here is a look at the American-made military guns of the 1940s:

FP-45 Liberator

Public Domain / Wikimedia Commons
  • Type: Single-shot pistol
  • Year introduced: 1942
  • Manufacturer: Guide Lamp Corporation
  • Firing action: Manually-actuated
  • Caliber and feed .45 ACP; Single-shot

Harrington and Richardson M4

  • Type: Combat aviator bolt-action survival rifle
  • Year introduced: 1949
  • Manufacturer: Harrington and Richardson
  • Firing action: Manually-actuated bolt-action
  • Caliber and feed .22 Hornet; 4-round detachable box magazine

Ithaca Model 37 Stakeout

  • Type: Pump-action shotgun
  • Year introduced: 1946
  • Manufacturer: Ithaca Gun Company
  • Firing action: Pump-action slide repeater
  • Caliber and feed 12- or 20-gauge; 4-round tubular magazine

Johnson LMG

Public Domain / Wikimedia Commons
  • Type: Squad support weapon
  • Year introduced: 1941
  • Manufacturer: Cranston Arms Company
  • Firing action: Short recoil operated, single-shot, full-automatic
  • Caliber and feed 30-06 Springfield; 25-round detachable box

Johnson Model 1941

Curiosandrelics / Wikimedia Commons
  • Type: Semi-automatic rifle
  • Year introduced: 1941
  • Manufacturer: Iver Johnson
  • Firing action: Semi-automatic, short-recoil, rotating bolt
  • Caliber and feed 30-06 Springfield, 7x57mm Mauser; 10-round cylindrical magazine

M1 Bazooka

Carl Malamud / Wikimedia Commons
  • Type: Shoulder-fired anti-tank rocket launcher
  • Year introduced: 1942
  • Manufacturer: General Electric
  • Firing action: Electrically-actuated, single-shot, reusable
  • Caliber and feed 60mm; Single-shot

M1A1 Flamethrower

Public Domain / Wikimedia Commons
  • Type: Portable infantry flamethrower
  • Year introduced: 1941
  • Manufacturer: State Factories
  • Firing action: Electrical ignition flame jet
  • Caliber and feed 4.7-gallon Nitrogen fuel container; 5-flamethrows possible

M1 Carbine

Public Domain / Wikimedia Commons
  • Type: Semi-automatic / full-automatic carbine
  • Year introduced: 1942
  • Manufacturer: State Factories
  • Firing action: Gas operated, short-stroke piston, semi-automatic
  • Caliber and feed 30 Carbine; 15- or 30-round detachable box magazine

M18 RR

  • Type: Anti-tank / anti-personnel recoilless rifle
  • Year introduced: 1945
  • Manufacturer: State Factories
  • Firing action: Recoilless
  • Caliber and feed 57x303mmR; Single-shot

M2 Carbine

Joe Mabel / Wikimedia Commons
  • Type: Select-fire automatic carbine
  • Year introduced: 1944
  • Manufacturer: General Motors
  • Firing action: Selective-fire, gas-operated, short-stroke piston
  • Caliber and feed 30 Carbine; 15- or 30-round detachable box magazine

M2-2 / M9A1-7

Public Domain / Wikimedia Commons
  • Type: Portable infantry flamethrower
  • Year introduced: 1943
  • Manufacturer: State Factories
  • Firing action: Rotary cartridge ignition flame jet
  • Caliber and feed 4.7-gallon Nitrogen fuel container; 7-flamethrows possible

M20 (Super Bazooka)

tomasdelcoro / Flickr
  • Type: Shoulder-fired anti-tank rocket launcher
  • Year introduced: 1944
  • Manufacturer: Conduction Corporation
  • Firing action: Magneto trigger
  • Caliber and feed 88.9mm; Single-shot

M20 RR

  • Type: Anti-tank / anti-personnel recoilless rifle
  • Year introduced: 1945
  • Manufacturer: State Factories
  • Firing action: Recoilless
  • Caliber and feed 75mm; Single-shot

M3 (Grease Gun)

Willard / iStock via Getty Images
  • Type: Submachine gun
  • Year introduced: 1943
  • Manufacturer: Ithaca Gun Company
  • Firing action: Open bolt, blowback
  • Caliber and feed .45 ACP, 9x19mm Parabellum; 30-round detachable box magazine

M3 Carbine

Curiosandrelics / Wikimedia Commons
  • Type: Sniper carbine rifle
  • Year introduced: 1944
  • Manufacturer: General Motors
  • Firing action: Selective-fire, gas-operated, short-stroke piston
  • Caliber and feed 30 Carbine; 15- or 30-round detachable box magazine

M9 Bazooka

Public Domain / Wikimedia Commons
  • Type: Shoulder-fired rocket launcher
  • Year introduced: 1943
  • Manufacturer: Conduction Corporation
  • Firing action: Magneto trigger
  • Caliber and feed 60mm; Single-shot

Marlin M2 Hyde

Public Domain / Wikimedia Commons
  • Type: Submachine gun
  • Year introduced: 1943
  • Manufacturer: Marlin Firearms
  • Firing action: Blowback
  • Caliber and feed .45 ACP; 20- or 30-round detachable box magazine

Reising Model 50

Curiosandrelics / Wikimedia Commons
  • Type: Submachine gun
  • Year introduced: 1941
  • Manufacturer: Harrington and Richardson
  • Firing action: Delayed blowback, closed-bolt
  • Caliber and feed .45 ACP, .30 Carbine; 12- or 20-round detachable box magazine

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