KwK39 (50 mm)

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Built from experiences of the French front when used against tanks that pinged the KwK L/42 (50 mm) harmlessly off such as B1 bis made it clear to the German military that a newer and more powerful cannon was in order. Thus the long gun that had been thought of not fitting the turret well was fitted on the tank with good success and served the Germans well in the Eastern Front.

Vehicles equipped with this weapon

General info

The KwK39 is best described as in lineage with the earlier KwK36 (37 mm) with not much damage per hit often requiring multiple shots to take out a tank, but with relatively good penetration and fast reload allowing for it to keep enemy modules offline if the first shot it gets off flies true.

Available ammunition

Penetration statistics
Ammunition Type of
Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
PzGr 39 APC 106 102 85 68 54 43
PzGr 40 APCR 129 119 83 53 34 21
PzGr 40/1 APCR 130 121 90 62 43 29
Sprgr. 38 HE 5 5 5 5 5 5
Shell details
Ammunition Type of
Mass (kg)
Fuse delay
Fuse sensitivity
Explosive Mass
(TNT equivalent) (g)
0% 50% 100%
PzGr 39 APC 835 2.05 1.2 9.0 28.9 48° 63° 71°
PzGr 40 APCR 1,130 0.9 N/A N/A N/A 66° 70° 72°
PzGr 40/1 APCR 1,130 1.07 N/A N/A N/A 66° 70° 72°
Sprgr. 38 HE 550 1.81 2.0 0.1 170 79° 80° 81°

Comparison with analogues

Give a comparative description of cannons/machine guns that have firepower equal to this weapon.

Usage in battles

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Pros and cons


  • Fires at a high velocity, making sniping or shooting at moving targets easier
  • Really quick reload rate, allows for quick follow-up shots
  • APCR can penetrate heavy tanks


  • Small calibre - little post-penetration damage
  • APC shell with explosive filler cannot reliably penetrate common tanks at this battle rating such as the T-34, M4 Sherman
  • Need to aim for important modules to deal more damage


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 If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: and add a link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 />.


An excellent addition to the article would be a video guide, as well as screenshots from the game and photos.

See also

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  • reference to the article about the variant of the cannon/machine gun;
  • references to approximate analogues by other nations and research trees.

External links

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  • topic on the official game forum;
  • encyclopedia page on the weapon;
  • other literature.

Germany tank cannons
20 mm  KwK30 · KwK38 · Rh202
28/20 mm  s.Pz.B.41
37 mm  KwK34(t) · KwK36 · KwK38(t)
47 mm  Pak.(t)(Sf.)
50 mm  KwK39 · KwK L/42 · PaK38
57 mm  Bofors L/70 Mk.1
75 mm  K51 L/24 · KwK37 · KwK40 · KwK42 · KwK44 · KwK44 L/36.5 · PaK39 L48 · PaK40/3 L46 · PaK42 · StuK37 · StuK40
76 mm  PaK36 (r)
88 mm  Flak.37 · Flak 41 · KwK36 · KwK43 · PaK43
90 mm  BK90
105 mm  FMK.4 Modelo 1L · K.18 · KwK L/68 · L7A3 · StuH42
120 mm  Rheinmetall L44
128 mm  K.40 · KwK44 · PaK44
150 mm  s.I.G.33 · Stu.H 43 L/12
57 mm  6pdr OQF Mk.V (Britain)
73 mm  2A28 (USSR)
75 mm  M3 (USA)
76 mm  F-32 (USSR) · F-34 (USSR) · M32 (USA)
90 mm  M36 (USA) · M41 (USA)
152 mm  M-10T (USSR) · XM150E5 (USA)