122 mm gun M1931/37 (A-19)

122 mm gun M1931/37 (A-19)
M1931/37 at the Museum on Sapun Mountain, Sevastopol
TypeField gun
Tank gun
Place of originUSSR
Production history
DesignerNo. 172 Plant design bureau, led by F. F. Petrov
Designed1931–1938
ManufacturerBarrikady Plant,
No. 172 Plant
Produced1939–1946
No. builtabout 2,450
Specifications
MassCombat: 7,117 kg
(15,690 lbs)
Travel: 7,907 kg
(17,431 lbs)
Length8.725 m (28 ft 8 in)
Barrel lengthBore: 5.485 m (17 ft 11.9 in) L/45
Overall:5.65 m (18 ft 6 in) L/46.3
Width2.345 m (7 ft 8 in)
Height2.27 m (7 ft 5 in)
Crew9

Shell122 × 785 mm. R
Caliber122 mm (4.8 in)
Breechinterrupted screw
Recoilhydro-pneumatic
Carriagesplit trail
Elevation−2° to 65°
Traverse58°
Rate of fire3–4 rounds per minute
Muzzle velocity806 m/s (2,640 ft/s)
Maximum firing range20.4 km (12.67 mi)

122 mm corps gun M1931/37 (A-19) (Russian: 122-мм корпусная пушка обр. 1931/1937 гг. (А-19)) was a Soviet field gun developed in late 1930s by combining the barrel of the 122 mm gun M1931 (A-19) and the carriage of the 152 mm howitzer-gun M1937 (ML-20). The gun was in production from 1939 until 1946. It saw action in World War II (primarily with corps and RVGK artillery of the Red Army) and remained in service for a long time after the end of the war. Vehicle-mounted variants of the gun were fitted to the IS-2 and IS-3 tanks of the Iosif Stalin series of tanks and the ISU-122 self-propelled gun.