Barrel Diffusion

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Polarity Madurai Pol
Rarity Rare
Dropped by The Grustrag Three
Grineer Seeker
Orokin Void Containers
Dark Sectors Defense Reward
Infested T3 Defense Reward
Interception Wave Reward

Barrel Diffusion increases the Multishot of Pistols.


Rank Effect Cost Conclave
0 20% 6 C20
1 40% 7 C20
2 60% 8 C28
3 80% 9 C35
4 100% 10 C43
5 120% 11 C50


  • The additional shots do not consume additional ammunition.
  • At 120%, this mod grants a 100% chance to fire one additional round (2 rounds/shot) and a 20% chance to fire two additional rounds (3 rounds/shot).
    • Equipping this mod and Lethal Torrent simultaneously will provide 180% multishot, giving the sidearm a 100% chance to fire 1 additional round (2 rounds/shot) and an 80% chance to fire an additional round (3 rounds/shot).
  • The in-game UI will consider any possible multishot capabilities when showing final damage numbers, and do not represent single-projectile damage. This is untrue when it is installed on a shotgun (i.e. a Bronco), in which the multishot adds to the amount of pellets and therefore it will remain a fixed value.
  • According to the reward table for Defense missions from Update 10.3, this mod can be obtained from Infested Defense missions. This does not apply to the Orokin Derelict, due to it having a separate reward table.
  • Equipping this mod increases the status chance of a weapon indirectly, but it is also calculated in the stats of the weapon. This is due to the possibility of shooting more than one projectile. 


  • Although the mod shows the Lex pistol portrayed to have two barrels, its default only shoots one bullet at a time.


See alsoEdit

Start a Discussion Discussions about Barrel Diffusion

  • Would Barrel Diffusion affect the Gammacor at all?

    4 messages
    • When multishot would affect a beam weapon (or any weapon with exact accuracy), the "extra" projectiles spawn 'inside' the original one. W...
    • if you want to check the existence of the second / third beams, use the mod dragon decreasing the accuracy, magnum shot
  • barrel diffusion location

    2 messages
    • it says it drops from grineer seekers & interception rewards. do you think i can find it on a low level grineer map like odin?
    • level of enemies has nothing to do with % drop chance.

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