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The 300 mm M-31-UK is a ground-launched Soviet rocket. It differs from its more common, smaller counterpart, the M-13, by being a larger rocket with a bulbous type warhead and 8 spin-stabilization fins

Vehicles equipped with this weapon

General info

The 300 mm M-31-UK is a large rocket with 8 spin-stabilizer fins and a bulbous warhead.

Effective damage

The M-31-UK is an HE rocket with a bulbous warhead, which allows it to deal incredible high explosive damage. This rocket can destroy almost all ground vehicles in-game with a single direct hit.

Comparison with analogues

This rocket will be compared most often with its smaller brother, the M-13. Compared to the M-13, the M-31 is over twice as large in calibre, and far more dangerous against enemy vehicles through overpressure.

Usage in battles

Describe situations when you would utilise this rocket in-game (vehicle, pillbox, base, etc)

Pros and cons


  • Indirect fire weapon, rockets can be used to attack targets behind obstacles
  • The launcher layout allows almost simultaneous launch of rockets
  • Surprisingly accurate for a ground-launched rocket
  • Large warhead; can dispatch all but the heaviest of tanks, unlike its smaller brother, the M-13


  • Vehicles carrying this weapon usually lack a large ammo pool; must be fired conservatively
  • Ranging shots is difficult


Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: https://wiki.warthunder.com/(Weapon-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />.


Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:

  • reference to the article about the variant of the weapon;
  • references to approximate analogues by other nations and research trees.

External links

Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • other literature.

70 mm  FFAR Mighty Mouse · Hydra-70 M247
110 mm  M8
127 mm  HVAR · Zuni Mk32 Mod 0 ATAP
298 mm  Tiny Tim
55 mm  R4M
73 mm  RZ.65
88 mm  Pb2
150 mm  Wgr.41 Spr
210 mm  Wfr.Gr.21
55 mm  S-5K · S-5KP · S-5M
80 mm  S-8KO · S-8M
82 mm  M-8 · ROS-82 · RBS-82
122 mm  S-13OF
127 mm  S-3K
132 mm  M13 · M-13UK · ROFS-132 · ROS-132 · RBS-132
212 mm  S-1of · S-21
240 mm  S-24 · S-24B
300 mm  M-31
420 mm  S-25O · S-25OF · S-25OFM
425 mm  TT-250
51 mm  RP
70 mm  CRV7 M247
80 mm  Type R80 SURA T-80-P 3 · Type R80 SURA T-80-US 3
87 mm  AP Mk I · AP Mk II
152 mm  RP-3
183 mm  Triplex R.P.
292 mm  Uncle Tom · Red Angel
100 mm  Type 5 No.1 Mod.9
120 mm  Type 3 No.1 Mod.28 Mk.1
130 mm  Type 75
210 mm  Type 3 No.6 Mod.27 Mk.1 · Type 5 No.6 Mod.9
55 mm  Type 57-1
70 mm  FS70
90 mm  Type 90-1
130 mm  Type 130-2
50 mm  ARF/8M3(AP-AT)
68 mm  SNEB type 23 · TDA
70 mm  FZ49
100 mm  TBA ECC · TBA Multi-Dart 100 AB
120 mm  T10 140 · T10 151
75 mm  srak m/55 Frida · srak m/57B
81 mm  Oerlikon Typ 3Z 8Dla
135 mm  m/56D · psrak m/70
145 mm  psrak m/49B · Psrak m/49/56
150 mm  srak m/51
180 mm  hprak m/49
80 mm  Flz.-Rakete Oerlikon
127 mm  AR