Barrel Diffusion is a mod that increases the multishot of pistols. These additional rounds do not consume extra ammunition.


Rank Effect Cost
0 +20% 6
1 +40% 7
2 +60% 8
3 +80% 9
4 +100% 10
5 +120% 11


  • The additional rounds do not consume additional ammunition.
  • At rank 4 or higher, this mod guarantees that at least 2 rounds will be fired for every 1 round of ammunition expended.
  • At maximum rank, this mod grants an 80% 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 Mod TT 20pxLethal 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 does not represent single-projectile damage. This is untrue when it is installed on a shotgun (i.e. a Bronco 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. 


Patch HistoryEdit

Hotfix 15.5.8
  • Fixed issue with Gammacor caused by using the Barrel Diffusion, Lethal Torrent and Seeker Mods all at once.


  • Introduced.

Start a Discussion Discussions about Barrel Diffusion

  • where is the best way to farm barrel defusion

    8 messages
    • ^ what he said. Survival missions at 15 minutes is the best way to get this mod. Can take awhile since it's up to the RNG gods. :(
    • i have a question dose the good drop rate include dark sector survivals? and what outlines a tear 3 darksector survival
  • Would Barrel Diffusion affect the Gammacor at all?

    11 messages
    • wrote: wrote: wrote: wrote:At max rank its equivalent to a 120% base damage increase...
    • Sorry, contradicted myself. The second statement is true the "whole bullet" part is kinda wrong. As I said, in the latter part, Th...
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