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Primed Deadly Efficiency
Warframe · Mod

Primed Deadly Efficiency

Archgun conditional-damage mod

Released Jun 26, 2024

Primed Deadly Efficiency grants a temporary damage bonus when an Archgun reloads from empty. Consider it when your firing and reload pattern can trigger that condition often enough to make use of the timed bonus.

TypeArchgunPolaritymaduraiMax rank10Base drain4VariantStandardRarityLegendary
Primed Deadly Efficiency GUIDE

Understand Primed Deadly Efficiency

Useful when…

  • Adding conditional damage to an Archgun when reloading from an empty magazine is part of its use.
  • Choosing a stronger, longer-lasting version of Deadly Efficiency.

Effect and trigger

On reload from empty, this standard Archgun mod grants +220% Damage for 17 seconds at rank 10. The trigger matters: a reload that does not begin from an empty magazine is not the stated condition. At rank 0 the bonus is +20% for 2 seconds; at rank 5 it is +120% for 9 seconds.

wiki.warframe.com ↗

Rank investment

It can be fused through rank 10, with base drain 4 and Madurai polarity. Ranks 9 to 10 cost 20,480 Endo and 989,184 Credits, increasing the listed bonus and duration to their maximums. Regular Deadly Efficiency has the same trigger and polarity, reaches +120% for 9 seconds at rank 5, and also has base drain 4. It is a lower-rank alternative rather than a second effect to stack with the Primed version.

wiki.warframe.com ↗

Slot and other Archgun choices

The mod occupies a standard Archgun slot and excludes Deadly Efficiency. Ammo Chain instead increases Archgun maximum ammo by 100%; Archgun Ace grants fire/charge rate and reload speed for 9 seconds after a headshot kill. Those alternatives address ammunition or a different conditional handling pattern, not the empty-reload damage effect.

Limitations and tradeoffs

  • The damage bonus requires reloading from empty and lasts a limited time.
  • The final rank requires 20,480 Endo and 989,184 Credits from rank 9.

Common mistakes to avoid

  • Reloading before the magazine is empty and expecting the stated trigger to activate.
  • Treating the bonus as permanent; it lasts 17 seconds at maximum rank.

Effects and reference details

Rank effects and investment

RankListed effectsUnpolarized drainTotal Endo from rank 0Total Credits from rank 0
0On Reload From Empty: +20% Damage for 2s400
1On Reload From Empty: +40% Damage for 3s5401,932
2On Reload From Empty: +60% Damage for 5s61205,796
3On Reload From Empty: +80% Damage for 6s728013,524
4On Reload From Empty: +100% Damage for 8s860028,980
5On Reload From Empty: +120% Damage for 9s91,24059,892
6On Reload From Empty: +140% Damage for 11s102,520121,716
7On Reload From Empty: +160% Damage for 12s115,080245,364
8On Reload From Empty: +180% Damage for 14s1210,200492,660
9On Reload From Empty: +200% Damage for 15s1320,440987,252
10On Reload From Empty: +220% Damage for 17s1440,9201,976,436

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

Primed Deadly Efficiency — 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 ↗Raw game data (JSON) ↗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
0On Reload From Empty: +20% Damage for 2s400
1On Reload From Empty: +40% Damage for 3s5401,932
2On Reload From Empty: +60% Damage for 5s61205,796
3On Reload From Empty: +80% Damage for 6s728013,524
4On Reload From Empty: +100% Damage for 8s860028,980
5On Reload From Empty: +120% Damage for 9s91,24059,892
6On Reload From Empty: +140% Damage for 11s102,520121,716
7On Reload From Empty: +160% Damage for 12s115,080245,364
8On Reload From Empty: +180% Damage for 14s1210,200492,660
9On Reload From Empty: +200% Damage for 15s1320,440987,252
10On Reload From Empty: +220% Damage for 17s1440,9201,976,436

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

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