M101 howitzer

M101 105mm light howitzer, towed
United States Marines fire a M101A1 during a ceremony in 2005
TypeHowitzer
Place of originUnited States
Service history
In service1941–present
Wars
Production history
ManufacturerRock Island Arsenal
Kia Machine Tool
Produced1941–1953
No. built10,200
Specifications
Mass4,980 lb (2,260 kg)
Length19 ft 6 in (5.94 m)
Barrel length7 ft 7 in (2.31 m) L/22
Width7 ft 3 in (2.21 m)
Height5 ft 8 in (1.73 m)

Shell105×372 mm R
Caliber105 mm (4.1 in)
BreechHorizontal-block
RecoilHydro-pneumatic, constant, 42 in (110 cm)
Carriagesplit trail
Elevation−5° (−89 mils) to
65° (1,156 mils)
Traverse±23° (±409 mils)
Muzzle velocity1,550 ft/s (472 m/s)
Maximum firing range7.00 mi (11,270 m)

The M101A1 (previously designated Howitzer M2A2 on Carriage M2A2) howitzer is an artillery piece developed and used by the United States. It was the standard U.S. light field howitzer in World War II and saw action in both the European and Pacific theaters and during the Korean War. Entering production in 1941, it quickly gained a reputation for accuracy and a powerful punch. The M101A1 fires 105 mm high explosive (HE) semi-fixed ammunition and has a range of 12,330 yards (11,270 m), making it suitable for supporting infantry.