Combustion Beam is a mod that causes enemies killed by Held Trigger primary weapons to explode, dealing up to 600 damage shortly after death.


Rank Damage Cost
0 +100 4
1 +200 5
2 +300 6
3 +400 7
4 +500 8
5 +600 9


  • The Explosion does 600 DmgBlastSmall64.png Blast damage in an 18m radius at max rank.
  • Combustion Beam is only usable on primary continuous weapons. This includes Robotic Weapons like Artax.png Artax , Cryotra.png Cryotra, and Verglas.png Verglas.
    • A notable exception to this rule is the TenetFluxRifle.png Tenet Flux Rifle, because it was derived from continuous weapon (FluxRifle.png Flux Rifle), even though its firing mechanics are similar to an automatic rifle.
  • Combustion beam essentially functions as a weaker MolecularPrime130xDark.png Molecular Prime (chain reaction effect), making it effective at clearing weak low level enemies very rapidly.
  • Enemies and the environment may block the AoE effect from reaching them, making it less consistent against tight crowds of enemies.
  • Enemies who are vaporized when killed (e.g. Volatile Runner) will not activate the bonus damage effect.
  • Because the Panthera.png Panthera's secondary fire has a continuous and fixed range, Combustion Beam can also be equipped on it. Enemies killed by either the primary or secondary fire will trigger the explosion.

Patch History[]

Update 17.0 (2015-07-31)

  • Introduced.