2S31 Vena

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2S31 Vena
2S31 Vena - Oboronexpo2014part3-02.jpg
Type Self-propelled mortar
Place of origin Russia
Service history
In service 2014–present
Production history
Designer Motovilikha Plants
Designed 1980-2007
Manufacturer Motovilikha Plants
Produced 1996
Weight 19.1 tons
Length 7 m
Width 3 m
Height 3 m
Crew 4

Elevation -4° to +80°
Traverse 360°
Rate of fire 8-10 rounds per minute
Maximum firing range 7.2-13 km

2A80 120 mm mortar
7.62 mm PKTM machine gun
Engine Diesel UTD-29
450 hp
Power/weight 26 hp per ton
Suspension Individual torsion bar
600 km
Speed 70 km/h

The 2S31 Vena (Russian: 2С31 Вена) is a Russian amphibious self-propelled 120 mm mortar system. "2S31" is its GRAU designation.


The 2S31 consists of a 120mm 2A80 rifled gun-mortar mounted on the chassis of the BMP-3 infantry combat vehicle.[1] It was developed by Joint Stock Venture "Plants of Motovilikha" (Russian: ОАО "Мотовилихинские заводы"). The 2S31's turret is equipped with digital automated fire control system, navigation system, and optical/electronic reconnaissance and target acquisition system. Its 2A80 gun-mortar is capable of launching a high-explosive mortar projectile with a maximum range of 18,000 metres.[1]

The 2S31 is currently in service with Russia, Azerbaijan, and Venezuela.[1]


  1. ^ a b c Foss, Christopher (10 May 2016). "SOFEX 2016 - Russia shows firepower [SOFEX16D1]". London: Jane's Information Group. Archived from the original on 22 December 2016. Retrieved 29 September 2016. 

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