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Efv-5 Jupiter
Warframe · Equipment

Efv-5 Jupiter

Automatic rifle with charged buckshot alternate fire

Released Mar 19, 2025

Efv-5 Jupiter is a mastery-rank-14 automatic rifle with a 65-round magazine and an alternate buckshot attack. Consider it for sustained hit-scan fire with a close-range option, while noting that the buckshot has a one-second charge and severe listed falloff.

TypeRifleMastery requirement14Critical chance21%Critical multiplier2.3
Efv-5 Jupiter GUIDE

Understand Efv-5 Jupiter

Useful when…

  • Sustained primary fire using its large magazine
  • Using alternate buckshot against targets within its short listed falloff range

What does each fire mode do?

The Auto attack is hit-scan and fires at a listed 7.83 shots per second. It has 21% critical chance, a 2.3× critical multiplier, and 25% status chance, dealing Slash, Puncture, and Corrosive damage. The Buckshot attack is separate: it lists a one-second charge, a 2.1× critical multiplier, and 5.73% status chance. Its listed falloff begins at 5 and ends at 10, with a 0.9921 reduction. The rifle has a 65-round magazine and a 2.5-second reload. The description calls the alternate fire Efervon-laced buckshot, but the detailed profile does not specify a broader area effect.

How should you use it?

The primary mode's high listed fire rate and large magazine suit sustained direct fire; its 25% status chance is also much higher than the alternate attack's listed 5.73%. Use buckshot as a close-range option when the charge is practical, since its listed falloff range runs only from 5 to 10. Avoid assuming that the primary attack's critical multiplier or status chance carries over: buckshot has its own 2.1× multiplier and status value. The rifle has two Madurai polarities listed, which are relevant when fitting mods of that polarity.

What alternatives have different roles?

Dual Viciss is a melee weapon, so it does not replace the rifle's ranged handling. Acceltra Prime is another automatic rifle, described as reloading faster while sprinting and faster still with Gauss. Ambassador switches between charged explosive shots and rapid-fire electrical assault mode.

Limitations and tradeoffs

  • Buckshot takes one second to charge and has steep listed falloff over a short range.
  • Auto fire and buckshot have different critical multipliers and status chances.
  • Mastery requirement is 14.

Common mistakes to avoid

  • Do not use Auto mode's 25% status chance or 2.3× critical multiplier for Buckshot.
  • Do not treat the Buckshot falloff values as a long-range option.

Effects and reference details

Detailed properties

Critical chance21%
Critical multiplier2.3×
Status chance25%
Listed attack rate7.83
Accuracy133.33
TriggerAuto
Magazine size65
Reload time2.5 seconds
Multishot1
Foundry Credits20,000
Foundry time12 hours

Attack modes

ModeCritical chanceCritical multiplierStatus chanceDamage types
Auto21%2.3×25%slash: 23, puncture: 31, corrosive: 7
Buckshot21%2.1×5.73%slash: 35, puncture: 57, corrosive: 35

Each mode has its own properties. Alternate forms may require additional unlocks; these values are not combined build damage.

References and version

Game data version: Pinned public export

Efv-5 Jupiter — WARFRAME Wiki ↗
Technical source data for verification

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Original data record ↗

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Mod capacity and investment

Unranked base capacity: 15 + one per two Mastery Ranks through MR30. Legendary ranks add one each. Rank-40 equipment unlocks two extra ranks per installed Forma.

Eight standard slots

Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
0Drain
30Capacity
30Remaining

The selected mods fit the verified slot, applicability and capacity constraints.

Upgrading these mods from their entered owned ranks costs 0 Endo and 0 Credits. Your shared Endo and Credits are allocated in My plan.

Select actual installed polarities. A planned polarity change requires the appropriate Forma and resets equipment rank. Conditional combat effects and unmodeled advanced upgrades stay separate.

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