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Flawed Blunderbuss
Warframe · Mod

Flawed Blunderbuss

Flawed shotgun critical chance mod

Released Jul 18, 2014

Flawed Blunderbuss adds shotgun Critical Chance and offers a low-drain, limited-rank option. Consider it as a temporary fit when you need critical chance and have limited mod capacity; it cannot be equipped alongside Blunderbuss or Critical Deceleration.

TypeShotgunPolaritymaduraiMax rank3Base drain2VariantFlawedRarityCommon
Flawed Blunderbuss GUIDE

Understand Flawed Blunderbuss

Useful when…

  • Use on a shotgun when its critical chance bonus and lower base drain suit an early or capacity-limited setup.

Effect and restrictions

The flawed mod provides +10% Critical Chance at rank 0 and +40% at rank 3. It is a standard-slot shotgun mod with Madurai polarity and base drain 2. It is explicitly incompatible with Blunderbuss and Critical Deceleration, so it cannot be combined with either.

Rank and alternatives

It reaches maximum rank 3 with listed rank-up costs of 10, 20, and 40 Endo and 483, 966, and 1,932 Credits. Standard Blunderbuss reaches +90% Critical Chance at rank 5, while Critical Deceleration reaches +200% and reduces Fire Rate by 20%; both are alternatives, and the flawed mod's incompatibilities prevent stacking them.

wiki.warframe.com ↗

Related shotgun option

Accelerated Blast instead supplies +60% Fire Rate and +60% Puncture. It does not provide the critical chance effect, so it addresses a different set of weapon properties.

Limitations and tradeoffs

  • Its maximum critical chance is lower than the standard Blunderbuss and Critical Deceleration options.
  • The flawed variant's explicit incompatibilities rule out combining it with either named alternative.

Common mistakes to avoid

  • Trying to equip it alongside Blunderbuss or Critical Deceleration despite the stated incompatibilities.

Effects and reference details

Rank effects and investment

RankListed effectsUnpolarized drainTotal Endo from rank 0Total Credits from rank 0
0+10% Critical Chance200
1+20% Critical Chance310483
2+30% Critical Chance4301,449
3+40% Critical Chance5703,381

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

Flawed Blunderbuss — 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.

Raw game data (JSON) ↗wiki.warframe.com ↗Warframe Public Export ↗

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
2Target slot drain
RankObserved effectDrainEndo from 0Credits from 0
0+10% Critical Chance200
1+20% Critical Chance310483
2+30% Critical Chance4301,449
3+40% Critical Chance5703,381

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

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