2S31 Vena vs 82-BM-37: Specs Compared

FORCETALLY

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2S31 Vena — licensed reference photograph

AMortars

2S31 Vena

Fire Support Combat Vehicle ( self-propelled mortar )

Credit

Vitaly V. Kuzmin · CC BY-SA 4.0 · Resized · CC BY-SA 4.0 · Source ↗ · Modified

BMortars

82-BM-37

Infantry mortar

AI-generated illustration · Not a photograph

Credit

ForceTally · AI-generated illustration · Not a photograph · AI-generated · OpenAI output terms · Source ↗ · Modified

First system

Second system

At a glance

Side by side

2S31 Venalarger figure on 2 of 3

Mass+34007%
Range+232%

82-BM-37larger figure on 1 of 3

Rate of fire+206%

Counts only measures both sources give with the same scope. A larger figure is not a better system.

Measured figures

Head to head

9 of 76 rows sourced on both sides

—

Length

All recorded figures & sources

7 m

Length

Single source

7 m (23 ft)^[source]

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Width

All recorded figures & sources

Configuration

Details

2S31 Vena and 82-BM-37 configuration
Specification	2S31 Vena	82-BM-37
Type	Fire Support Combat Vehicle ( self-propelled mortar )^[source]	Infantry mortar^[source]
Place of origin	Russia^[source]	Soviet Union^[source]
In service	2014–present^[source]	1937–present^[source]
Designer	Motovilikha Plants^[source]	—

Manufacturer	Motovilikha Plants^[source]	—

Produced	1996^[source]	—

Elevation	-4° to +80°^[source]	+45° to +75°^[source]

Traverse	360°^[source]	6° to 15°^[source]

Main armament	2A80 120 mm mortar^[source]	—

Secondary armament	7.62 mm PKTM machine gun^[source]	—

Power/weight	19.4 kW (26.0 hp) per ton^[source]	—

Suspension	Individual torsion bar^[source]	—

Used by	—	Soviet Union^[source]

Wars	—	World War II Kosovo War Korean War Vietnam War Cambodian Civil War Rhodesian Bush War Portuguese Colonial War Uganda-Tanzania War Afghan Wars Gulf War Syrian Civil War Russo-Ukrainian War^[source]

Shell weight	—	3.05 kg (6 lb 12 oz)^[source]

Role	—	Soviet 82 millimeter calibre mortar^[source]

Source measurement	—	The M-37 or 82-BM-37 (батальонный миномёт, battalion mortar) is a Soviet 82 millimeter calibre mortar designed by B.I. Shavyrin and accepted into service in 1937. The design of the M-37 is based on the earlier French Brandt mle 27/31 mortar with Russian modifications. The main difference between the 82-PM-37 and the earlier 82-PM-36 was the adoption of a round base plate, revised traverse/elevation controls, simplified sights and spring-loaded shock absorbers on the bi-pod to reduce the amount of relaying needed between shots. It was designed to be able to fire western 81 mm captured ammunition whilst not permitting the enemy the same advantage The German designation for captured M-37 mortars was 8.2 cm GrW 274/2(r) .^[source]82-BM-37 · Lead; only the objects and conditions stated in this passage The M-37M is an improved version with a lighter base plate and a device to prevent double loading.^[source]82-BM-37 · Lead; only the objects and conditions stated in this passage

Source measurement

—

The M-37 or 82-BM-37 (батальонный миномёт, battalion mortar) is a Soviet 82 millimeter calibre mortar designed by B.I. Shavyrin and accepted into service in 1937. The design of the M-37 is based on the earlier French Brandt mle 27/31 mortar with Russian modifications. The main difference between the 82-PM-37 and the earlier 82-PM-36 was the adoption of a round base plate, revised traverse/elevation controls, simplified sights and spring-loaded shock absorbers on the bi-pod to reduce the amount of relaying needed between shots. It was designed to be able to fire western 81 mm captured ammunition whilst not permitting the enemy the same advantage The German designation for captured M-37 mortars was 8.2 cm GrW 274/2(r) .^[source]82-BM-37 · Lead; only the objects and conditions stated in this passage

The M-37M is an improved version with a lighter base plate and a device to prevent double loading.^[source]82-BM-37 · Lead; only the objects and conditions stated in this passage

Country of origin	—	Soviet Union^[source]Inventory Origin column; table 4, row 12, cell 4; revision 1347912314; retrieved 2026-10-02

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