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Narrow Barrel
Warframe · Mod

Narrow Barrel

A shotgun Exilus mod that temporarily raises aiming accuracy after a hit.

Released Jan 25, 2016

Narrow Barrel is a standard shotgun Exilus mod for players who want improved accuracy while aiming. A hit triggers the bonus, which scales from +5% for 2 seconds at rank 0 to +30% for 9 seconds at rank 5. It is most relevant when you aim and can maintain the hit-triggered effect.

TypeShotgunPolaritymaduraiMax rank5Base drain2VariantStandardRarityRare
Narrow Barrel GUIDE

Understand Narrow Barrel

Useful when…

  • Consider it for a shotgun setup that benefits from more accuracy while aiming and can trigger the bonus with hits.
  • Compare it with other conditional shotgun mods only when their distinct triggers and effects suit your play pattern.

What triggers the accuracy bonus?

On hit, Narrow Barrel grants accuracy while aiming. At rank 0 the effect is +5% for 2 seconds; rank 3 provides +20% for 6 seconds; rank 5 provides +30% for 9 seconds. The stated effect is conditional on hitting and aiming, rather than a permanent accuracy bonus.

wiki.warframe.com ↗

Where does it fit, and what are the alternatives?

It is a standard shotgun Exilus mod with Madurai polarity and base drain 2. Double-Barrel Drift is a Conclave shotgun Exilus mod that gives +20% accuracy while sliding and -20% weapon recoil, so its condition and variant differ. Laser Sight requires a weak-point hit while aiming and adds critical chance; Nano-Applicator triggers on ability cast while aiming and adds status chance. These alternatives do not reproduce Narrow Barrel's on-hit accuracy effect.

How should you rank it?

The mod has five ranks. Its effects rise from +5% accuracy for 2 seconds to +30% for 9 seconds; rank 3 is +20% for 6 seconds. The supplied rank 4-to-5 fusion example costs 480 Endo and 23,184 Credits, so weigh that cost against the extra accuracy and duration you will actually use.

wiki.warframe.com ↗

What should you watch for?

The bonus requires both a hit trigger and aiming; equipping the mod alone does not provide the listed full bonus continuously. Do not confuse its standard variant with the Conclave-only Double-Barrel Drift or assume the critical-chance and status-chance alternatives share its trigger.

Limitations and tradeoffs

  • Consumes a shotgun Exilus slot for a hit-triggered aiming accuracy bonus.
  • The bonus duration and amount improve with rank, with fusion costs increasing at higher ranks.
  • Other listed shotgun mods use different triggers and grant recoil, critical-chance, or status-chance effects instead.

Common mistakes to avoid

  • Treating the bonus as permanent or forgetting it requires a hit and aiming.
  • Confusing the standard mod with a Conclave variant or substituting a different trigger without accounting for its changed effect.

Effects and reference details

Rank effects and investment

RankListed effectsUnpolarized drainTotal Endo from rank 0Total Credits from rank 0
0On Hit: +5% Accuracy when Aiming for 2s200
1On Hit: +10% Accuracy when Aiming for 3s3301,449
2On Hit: +15% Accuracy when Aiming for 5s4904,347
3On Hit: +20% Accuracy when Aiming for 6s521010,143
4On Hit: +25% Accuracy when Aiming for 8s645021,735
5On Hit: +30% Accuracy when Aiming for 9s793044,919

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

Narrow Barrel — 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
2Target slot drain
RankObserved effectDrainEndo from 0Credits from 0
0On Hit: +5% Accuracy when Aiming for 2s200
1On Hit: +10% Accuracy when Aiming for 3s3301,449
2On Hit: +15% Accuracy when Aiming for 5s4904,347
3On Hit: +20% Accuracy when Aiming for 6s521010,143
4On Hit: +25% Accuracy when Aiming for 8s645021,735
5On Hit: +30% Accuracy when Aiming for 9s793044,919

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

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