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BM-31-12
Photo: Cmapm · Wikimedia Commons · CC BY 3.0
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BM-31-12

Multiple Launch Rocket Systems (MLRS) · Russia · 1941
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BM-31-12

BM-31-12
BM-31-12 Photo: Cmapm · Wikimedia Commons · CC BY 3.0
* Absolute score — assessed within category · no era adjustment
Range
30
Saturation Firepower
45
Salvo Size
50
Reload Speed
40
Precision (guided)
0
Mobility
55
Shoot-and-Scoot
20
Ammunition Versatility
35
Technology
25
Cost-Effectiveness
80
Origin Russia
CategoryMultiple Launch Rocket Systems (MLRS)
EraWorld War II
In service1941
Operators4 countries
Data Quality87%
36
Multiple Launch Rocket Systems (MLRS) MASS Rating
6/21
World War II
110/151
All-Time
Multiple Launch Rocket Systems (MLRS) · 10 axes scored
Range
30
Saturation Firepower
45
Salvo Size
50
Reload Speed
40
Precision (guided)
0
Mobility
55
Shoot-and-Scoot
20
Ammunition Versatility
35
Technology
25
Cost-Effectiveness
80
ⓘ Regardless of era, the same scoring system applies to all units in the multiple launch rocket systems (mlrs) category.
01 / Overview
BM-31-12
Country
Production
1941–
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MULTIPLE LAUNCH ROCKET SYSTEMS (MLRS) · WORLD WAR II
6
PERFORMANCE/PRICE
94
UNIT COST (2025 USD)
—
36
multiple launch rocket systems (mlrs) category
ⓘ Performance/Price and MASS score are computed across all units in the multiple launch rocket systems (mlrs) category, regardless of era.
02 / Specs & Design
◎General3MOD.3
◈Ordnance2MOD.2
  • Calibre300 mm
  • Ordnance TypeM-31 rocket
▣Performance4MOD.4
  • Maximum Range (standard)2.8 km
  • Muzzle Velocity255 m/s
  • Rate of Fire (burst)12
  • Rate of Fire (sustained)4
◇Ammunition1MOD.1
  • Projectile Weight63 kg
◆Mobility7MOD.7
  • Self-PropelledYes
  • Prime MoverStudebaker US6 U3 truck
  • Emplacement Time5
  • Displacement Time3
  • Shoot-and-ScootYes
  • Road Speed (if SP)60 km/h
  • Range (if SP)600 km
▤Ammunition Handling2MOD.2
  • Ready Rounds12
  • Total Rounds Carried24
⬢Dimensions3MOD.3
  • Length6.9 m
  • Width2.2 m
  • Height2.5 m
03 / History
SERVICE LIFESPANStill in Service
  1. 1941Production started
85
years in service
1
countries operating
ⓘ The producing country no longer actively operates it. 3 countries retired it.
04 / Operators
📖 TERMS ON THIS PAGE3terms
Artillery system with integrated propulsion, enabling movement under its own power rather than being towed.
Artillery tactic where a firing unit rapidly deploys, fires, and relocates to avoid counter-battery fire.
Artillery classification distinguishing self-propelled wheeled vehicles from weapons towed by external means.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Multiple Launch Rocket Systems (MLRS) entry →