QUICK LINKSBrowse all 167 games ELDEN RING official game artworkElden RingCyberpunk 2077 official game artworkCyberpunk 2077Stardew Valley official game artworkStardew ValleyTerraria official game artworkTerrariaHu Tao — Genshin ImpactGenshin ImpactMarch 7th — Honkai: Star RailHonkai: Star Rail
Discover your next upgrade Game information & guides
Viper
Warframe · Equipment

Viper

Compact automatic secondary

Released Mar 18, 2013

Viper is a very fast automatic pistol with a 14-round magazine and exceptionally short listed reload. Consider it if you want rapid-fire handling at low Mastery Rank and are comfortable reloading often.

TypePistolMastery requirement4Critical chance15%Critical multiplier1.5
Viper GUIDE

Understand Viper

Useful when…

  • Close-range automatic fire where its high fire rate is useful.
  • Early secondary progression when its Mastery Rank 4 requirement is accessible.

How it fires

Viper’s single attack is automatic and hit-scan, firing about 14.38 shots per second. Each shot deals 17 base damage, mostly Impact, with 15% critical chance, a 1.5× critical multiplier and 11% status chance. Its accuracy stat is about 15.38, so it is better suited to nearby targets than precise long-range shots.

Magazine and reload

The 14-round magazine is small for a weapon firing at this speed, but its listed reload is only 0.7 seconds. Expect frequent reloads while holding the trigger; the short reload limits downtime but does not change the need to track remaining rounds.

Investment and alternatives

Viper requires Mastery Rank 4 and has one Naramon polarity for a matching mod slot. If you want more deliberate long-range shots, Lex is described as powerful and accurate but slower, with a low magazine. Kuva Brakk is a semi-automatic shotgun sidearm, and Kuva Seer is a variant pistol with superior zoom and a small Corrosive burst on projectiles; their handling and unlock progression differ from Viper’s compact automatic profile.

Limitations and tradeoffs

  • Small capacity means frequent reloads during sustained fire.
  • The low accuracy value and high fire rate encourage closer engagement.
  • Its listed critical and status chances are modest.

Common mistakes to avoid

  • Assuming the 14-round magazine supports long uninterrupted firing at 14.38 shots per second.
  • Using it for deliberate distant shots despite its low listed accuracy.

Effects and reference details

Detailed properties

Critical chance15%
Critical multiplier1.5×
Status chance11%
Listed attack rate14.38
Accuracy15.38
TriggerAuto
Magazine size14
Reload time0.7 seconds
Multishot1
Foundry Credits20,000
Foundry time12 hours

Attack modes

ModeCritical chanceCritical multiplierStatus chanceDamage types
Normal Attack15%1.5×11%impact: 10.2, slash: 5.1, puncture: 1.7

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

Viper — WARFRAME Wiki ↗
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) ↗

Original data record ↗

Optional: calculate an upgrade or configurationOpen the calculator when you want a cost estimate or a compatibility check.
BUILD YOUR CONFIGURATION

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.

Find your next upgrade

Details