M198 howitzer

The M198 howitzer is a medium-sized, towed artillery piece, developed for service with the United States Army and Marine Corps. It was commissioned to be a lightweight replacement for the WWII-era M114 155 mm howitzer. It was designed and prototyped at the Rock Island Arsenal in 1969 with firing tests beginning in 1970 and went into full production there in 1978. It entered service in 1979 and since then 1,600 units have been produced and put into operation.

The M198 is being replaced in US and Australian service by the M777 howitzer.

M198 howitzer
Class Vehicle
Type Towed Artillery
Manufacturer Rock Island Arsenal
Production Period 1978 - 1992
Origin United States of America
Country Name Origin Year
United States of America 1979
Country Name Operational Year Retirement Year
Australia View
Ecuador View
Honduras View
Iraq View
Lebanon View
Morocco View
Pakistan View
Saudi Arabia View
Thailand (Siam) View
Tunisia View
United States of America 1979 View
ManufacturerName Production From Production To Quantity
Rock Island Arsenal 1978 1992 1600 View

Type Towed howitzer
Place of origin United States
Service history
In service 1979 to present
Used by See Operators
Wars Gulf War
Production history
Designed 1968–1977
Manufacturer Rock Island Arsenal (US)
Unit cost US$ 527,337
Produced 1978–1992
Number built 1,600+
Weight 7,154 kg (15,772 lb)
Length Combat: 11 m (36 ft 2 in)
Travel: 12.3 m (40 ft 6 in)
Barrel length 6.09 (19.98ft)
Width Travel: 2.8 m (9 ft 2 in)
Height Travel: 2.9 m (9 ft 6 in)
Crew 9 enlisted men
Caliber 155 mm (6.1 in)
Elevation -5° to +72°
Traverse 45°
Rate of fire Maximum: 4 rpm
Sustained: 2 rpm
Muzzle velocity 684 m/s (2,240 ft/s)
Maximum firing range Conventional: 22.4km (14 mi)RAP: 30km (18.6 mi)

End notes