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Combustion Rounds
Warframe · Mod

Combustion Rounds

Archgun mod that adds Heat damage.

Released Oct 24, 2014

Combustion Rounds adds Heat to an Archgun's damage. It is incompatible with Primed Combustion Rounds.

TypeArchgunPolaritymaduraiMax rank5Base drain4VariantStandardRarityUncommon
Combustion Rounds GUIDE

Understand Combustion Rounds

Useful when…

  • Use it in an Archgun setup that calls for additional Heat damage.
  • Consider whether its Heat bonus suits the setup and whether a standard slot is available.

Effect and compatibility

The mod adds +20% Heat at rank 0, +80% at rank 3, and +120% at rank 5. It is for Archguns and is explicitly incompatible with Primed Combustion Rounds.

wiki.warframe.com ↗

Capacity and ranking

Combustion Rounds is an Uncommon standard mod with Madurai polarity, base drain 4, and maximum rank 5. Its rank raises the Heat bonus; the rank 4-to-5 example step costs 320 Endo and 15,456 Credits.

wiki.warframe.com ↗

Other Archgun mod effects

Primed Combustion Rounds lists +187% Heat and has a maximum rank of 10; it is a separate option, incompatible with this mod. Ammo Chain adds ammunition maximum. Archgun Ace triggers on a headshot kill and grants fire or charge rate and reload speed for 9 seconds. These listed effects address different needs.

Limitations and tradeoffs

  • Uses a standard Archgun slot and requires Endo and Credits to rank.
  • Cannot be equipped together with Primed Combustion Rounds.

Common mistakes to avoid

  • Trying to equip it with the explicitly incompatible Primed version.
  • Treating the listed Heat percentage as final weapon damage.

Effects and reference details

Rank effects and investment

RankListed effectsUnpolarized drainTotal Endo from rank 0Total Credits from rank 0
0+20% Heat400
1+40% Heat520966
2+60% Heat6602,898
3+80% Heat71406,762
4+100% Heat830014,490
5+120% Heat962029,946

These are listed mod effects and fusion costs, not final build damage. Matching and mismatched polarities change capacity. Totals assume starting at rank 0.

References and version

Game data version: Pinned public export

Combustion Rounds — WARFRAME Wiki ↗wiki.warframe.com ↗
Technical source data for verification

These machine-readable game records support the calculations and factual checks. The wiki references above are intended for reading.

Warframe Public Export ↗wiki.warframe.com ↗

Original data record ↗

Optional: calculate an upgrade or configurationOpen the calculator when you want a cost estimate or a compatibility check.
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Fusion cost and capacity

0Endo
0Credits
4Target slot drain
RankObserved effectDrainEndo from 0Credits from 0
0+20% Heat400
1+40% Heat520966
2+60% Heat6602,898
3+80% Heat71406,762
4+100% Heat830014,490
5+120% Heat962029,946

Slot polarity changes drain; fusion prices depend on mod rarity and family.

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Details