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Trader MKB42.png
Pricing: £1100 (£825)
Weight: 6 blocks
Ammo: 30 Hud Ammo Clip.png 9 (300)
Related achievements
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Creepy Crawlies.jpg Creepy Crawlies

German WWII prototype assault rifle. Used by heroes from the Battle of Stalingrad to the present day! —Trader description 

The MKb42 (Maschinenkarabiner 1942) is a powerful medium-range assault rifle for Commandos. Statistically, it is identical to the AK-47 in damage per shot, with the following differences: the MKb is more expensive, recoils less but also less controllable, cycles faster, has less bullet spread but is slightly less accurate for single shots. It possesses only a basic iron-sight instead of a scope, but still offers the slight zoom effect while looking down the sights, and the pointed front sight eases precise aiming. It cannot be found in the default weapon spawns. With the appropriate level of the Commando perk, its default magazine capacity of 30 bullets and price of £1100 can be altered to as far as a 37 bullet magazine and £330 cost. It possesses the default headshot damage multiplier of 110%, which can be extended with the use of Sharpshooter perk.


The commando perk gives bonuses and discounts on the MKb42. For headshot damage, multiply by 1.1.

Level  Discount Price Sale value Damage Magazine size
Base 0% £1100 £825 45 30
0 10% £990 £742 47 30
1 20% £880 £659 49 33
2 30% £770 £577 54 36
3 40% £660 £494 58 37
4 50% £550 £412 63 37
5 60% £440 £329 67 37
6 70% £330 £247 67 37

Price and ammunition[edit]

The cost of the MKb42 is £1100, which can be reduced to £330 with use of the commando perk, at intervals of £110 per level. The cost of ammunition remains static per-bullet at £1 for 3 bullets, but the magazine size changes according to a commando's level. With another perk selected or with level 0 commando players get the default 30-bullet magazine and 300-bullet capacity, with a cost of £10 per magazine and £100 total. At level 1, players receive a 33-bullet magazine and 330-bullet capacity, costing £110 total. At level 2, players receive a 36-bullet magazine and a 360-bullet capacity, costing £120 total. At level 3 and above, commandos receive a 25% capacity increase, which does not divide well into the default 30-bullet capacity because it would leave the MKb with 37.5 bullets per magazine; the result is a 37-bullet magazine and 375 total bullets, costing £125 altogether.


The MKb can decapitate a weaker specimen with a single headshot under all circumstances. Of the available assault and battle rifles, the MKb comes in the middle in the aspects of damage and ammo capacity, along with the AK-47. It has a rate of fire equal to the Bullpup, which is faster than the AK-47, and a bullet spread that is slightly wider than that of the bullpup, and narrower than that of the AK-47.

While operating at fully-automatic, the rate of fire for the MKb is 10 bullets per second. Without perk bonuses, the damage output of a single magazine is 1350 damage in 3 seconds, followed by a 3-second delay to reload. As a level 5 or 6 commando, the total damage output of a single magazine of 37 bullets is 2497.5 damage in 3.7 seconds with a 2-second delay for reloading before being able to fire again.


The selective fire on the MKb allows a player optional control over the rate of fire. Semi-automatic allows for players to easily conserve ammunition while firing upon weaker specimens and to maintain overall accuracy. Fully-automatic can also be used in a similar fashion if players have enough control over how long they hold the primary fire button, but also gives the option of firing in short bursts or in longer streaks if the situations require it. When firing all out, the recoil of the MKb only pulls your aim upwards on average, not rightwards like with the AK.

As an off-perk weapon it could be considered by Demolition Experts and Field Medics. If used as an off-perk side arm it's advised to keep it in single fire as it can clean trash specimens with successful headshots from a reasonable distance, without too much recoil. Even though it's a reliable and strong side-arm it means nothing to some classes, as it's expensive, has high recoil, and mediocre damage output.

Advantages & Disadvantages[edit]


  • An all-rounder weapon;
  • Powerful, identical to the AK-47 in damage per shot;
  • Reliably decapitates lesser specimens;
  • Way less spread compared to AK-47 which ties it with M4;
  • 15% less recoil rate compared to AK-47 for control over bursts;
  • Single fire shots are easy to control with half
  • Controllable yet rapid rate of fire;
  • Can be an alternate to battle rifles at low perk levels;
  • Manageable recoil even on full-auto fire;
  • Semi-automatic and fully-automatic firing modes.


  • Hardly worths denting progress towards better rifles to buy it;
  • Weak against stronger specimens (like the Fleshpound or Patriarch);
  • Faster fire rate only beneficial for full auto;
  • More expensive than AK-47 or M4;
  • Higher recoil than M4;
  • AK-47 does everything it can do pretty same;
  • Less spread and recoil can be ignored at high perk levels;
  • Primitive iron sights.


The MKb42(H) is a prototype weapon developed in Nazi Germany. It is the predecessor to the MP44/StG 44. Being a late addition, added to Killing Floor in the Hillbilly Horror event, it was not featured in the original mod. The weapon description (and possibly its very inclusion) is a reference to another Tripwire title, Red Orchestra 2: Heroes of Stalingrad.

See also[edit]

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