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 Fron.

Vehicles equipped with this weapon

General info

The KwK-39 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 shells

Penetration statistics
Ammunition Type of


Penetration in mm @ 90°
10m 100m 500m 1000m 1500m 2000m
PzGr 39 APC 95 92 76 61 49 39
Sprgr. 38 HE 5 5 5 5 5 5
PzGr 40/1 APCR 128 126 91 61 40 27
PzGr 40 APCR 150 149 108 72 48 32
Shell details
Ammunition Type of



in m/s


Mass in kg

Fuse delay

in m:

Fuse sensitivity

in mm:

Explosive Mass in g(TNT equivalent): Normalization At 30°from horizontal: Ricochet:
0% 50% 100%
PzGr 39 APC 835 2.1 1.2 25 45.9 -1° 48° 63° 71°
Sprgr. 38 HE 550 1.8 2.0 0.1 170 +0° 79° 80° 81°
PzGr 40/1 APCR 1140 1.1 N/A N/A N/A +1.5° 66° 70° 72°
PzGr 40 APCR 1180 0.93 N/A N/A N/A +1.5° 66° 70° 72°

Comparison with analogues

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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 caliber - 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 this weapon. If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ History" (example: and add a link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>, as well as adding them at the end of the article.


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 weapon;
  • other literature.

Germany tank cannons
20 mm  KwK30 · KwK38 · Rh202
28/20 mm  s.Pz.B.41
30 mm  MK 30-2/ABM
37 mm  KwK34(t) · KwK36 · KwK38(t) · PaK L/45
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  CN105-57 · FMK.4 Modelo 1L · K.18 · KwK L/68 · L7A3 · PzK M57 · StuH42
120 mm  Rh120 L/44 · Rh120 L/55
128 mm  K.40 · KwK44 · PaK44
150 mm  s.I.G.33 · Stu.H 43 L/12
  HSS 831L (Britain)
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)
105 mm  GT-3 (Britain)
152 mm  M-10T (USSR) · XM150E5 (USA)