Artillery

120-PM-38

The 120-PM-38, also known as the M1938, is a Soviet 120 mm smoothbore heavy mortar designed under B. I. Shavyrin and built for infantry fire support. Its large mortar bomb, wheeled transport arrangement, and roughly 5.7 km range made it a durable Soviet artillery design, with Ukrainian stocks still documented around the Russia-Ukraine War rather than acquired as a modern foreign transfer.

Conflict side
Ukraine
Built by
Plant No. 92 Nizhny Novgorod
Built in
Soviet Union
120-PM-38, 120 mm towed heavy mortar, Artillery

Profile

Type
120 mm towed heavy mortar
Conflict side
Ukraine
Origin
Soviet Union
Service note
Introduced in 1938; retained in limited Ukrainian inventory during the Russia-Ukraine War

Service History

In service
Entered Soviet service in 1938
Used by
Ukrainian Armed Forces, Red Army
Wars
Russia-Ukraine War, World War II

Production History

Designer
Design bureau led by B. I. Shavyrin
Designed
1937-1938
Built by
Plant No. 92 Nizhny Novgorod
Built in
Soviet Union
Unit cost
Not publicly available
Produced
From 1939
Number built
About 3,800 in Red Army service by 22 June 1941
Variants
120 mm battalion mortar model 1941, 120-PM-43 successor modernization

Specifications

Caliber
120 mm
Crew
6
Maximum range
5,700 m
Weight
557 kg listed by National Defence University of Ukraine
Rate of fire
6 to 15 rounds per minute
Ammunition load
80 rounds listed for the system

Conflict Usage

Russia-Ukraine War
Side: Ukraine

Ukraine retained Soviet-pattern 120-PM-38/M1938 120 mm mortars in its mortar inventory before the 2022 full-scale invasion; OSCE monitoring during the earlier Donbas phase separately listed PM-120/PM-38 120 mm mortars at a government-controlled heavy-weapons holding area in Donetsk region.

Related Weapon Systems

MO-120 RT, 120 mm rifled towed heavy mortar, ArtilleryArtilleryMO-120 RT120 mm rifled towed heavy mortarThe MO-120 RT is a French 120 mm rifled towed heavy mortar developed by Brandt and later associated with TDA/Thales production. Its rifled barrel, two-wheel carriage, and rocket-assisted ammunition option give it longer range than many smoothbore infantry mortars, while remaining towable by light or medium vehicles. In the Russia-Ukraine War, Ukrainian forces received Belgian MO-120 RT mortars and used the type for front-line indirect fire support.

Sources