M67 recoilless rifle

M67 recoilless rifle
The M67 recoilless rifle
Type	Recoilless rifle
Place of origin	United States
Service history
In service	1960s–present
Wars	Vietnam War Cambodian Civil War Laotian Civil War Lebanese Civil War Salvadoran Civil War Third Indochina War Soviet–Afghan War Falklands War United States invasion of Grenada United States invasion of Panama 1989 Philippine coup d'état attempt Gulf War War in Afghanistan Moro conflict [1][2]
Specifications
Mass	37.5 lb (17 kg) Empty 46.7 lb (21.2kg) Loaded
Length	53 in (1,346 mm)
Height	17 in (432 mm)
Crew	3 – Gunner, Assistant gunner, Ammunition bearer
Cartridge weight	9.25 lb (4.2 kg) HEAT round 6.79 lb (3.08kg) HE round
Caliber	3.54 in (90 mm)
Action	13.7 in (350 mm) against RHA 31.5 in (800 mm) against concrete
Rate of fire	1-2 rpm
Muzzle velocity	700 ft/s (213 m/s)
Effective firing range	328 yd (300 m)
Maximum firing range	2,300 yd (2,100 m)
Sights	3x M103 Telescopic sight with stadia lines

The M67 recoilless rifle is a 90 mm (3.55 inch) anti-tank recoilless rifle made in the United States and later in South Korea. It could also be employed in an anti-personnel role with the use of the M590 antipersonnel round. It was designed to be fired primarily from the ground using the bipod and monopod, but could also be fired from the shoulder using the folded bipod as a shoulder rest and the monopod as a front grip. The weapon was air-cooled and breech-loaded, and fired fixed ammunition. It is a direct fire weapon employing stadia lines to allow simple range finding, based on a typical tank target bridging the lines once in range.