A full-auto pistol known as the most compact and lightweight weapon of the Grineer arsenal. Though it has a small clip size, the Viper has a very high fire rate and ultra-fast reload times thanks to a simplified magazine design.

The Viper is a machine pistol of Grineer design issued to their Shield Lancers. It is the most portable weapon manufactured by the Grineer and boasts a high rate of fire and an extremely efficient magazine reload, but poor accuracy.

This weapon can be sold for Credits642,500; it is also a requisite ingredient for Twin Vipers (x2) and Hystrix.

Manufacturing Requirements
Time: 12 hrs
Rush: Platinum64 35
MarketIcon Market Price: Platinum64 75 Blueprint2 Blueprints Price:Credits6420,000


This weapon deals primarily Impact b Impact damage.


  • High Impact b Impact damage – effective against shields.
  • Good critical chance.
  • Very fast reload speed.
  • Tied with Viper Wraith for fastest fire rate of all single-handed pistols.
  • Good accuracy.
  • Can use the Viper-exclusive Stinging Truth mod.
  • A Naramon Pol polarity slot.


  • Small magazine size.
    • Combined with its very fast fire rate results in frequent reloading.
  • Inefficient ammo economy.
  • Below average critical damage multiplier.
  • Low status chance.


  • Viper, compared to Twin Vipers:
    • Lower fire rate (14.38 rounds/sec vs. 25 rounds/sec)
    • Smaller magazine (14 rounds vs. 28 rounds)
    • Faster reload speed (0.7 s vs. 2 s)
    • Different polarities (Madurai Pol vs. Naramon Pol)
    • Lower Mastery Rank required (4 vs. 5)

  • Viper, compared to Viper Wraith:
    • Lower base damage (17.0 vs. 18.0)
      • Lower Impact b Impact damage (10.2 vs. 14.4)
      • Lower Puncture b Puncture damage (1.7 vs. 1.8)
      • Higher Slash b Slash damage (5.1 vs. 1.8)
    • Lower critical chance (15% vs. 19%)
    • Lower critical damage multiplier (1.5x vs. 2x)
    • Higher status chance (11% vs. 9%)
    • Smaller magazine (14 rounds vs. 20 rounds)
    • Faster reload speed (0.7 s vs. 0.8 s)
    • Less accurate (15 vs. 29)
    • Different polarities (Madurai Pol vs. Naramon Pol)

Weapon LoadoutsEdit


  • Although it is not recommended for long range fighting, correctly aiming and tapping the trigger will expend 1-2 bullets at once, and you may get a decent critical or headshot rate by doing this.
    • This may be done more comfortably by making a secondary keybind for firing on mouse wheel. It shall also allow to fire in a way Shield Lancers do.
  • Using the Pistol Ammo Mutation mod can help regain lost ammo when needed. Alternatively, use Pistol Scavenger aura or bring along Team Ammo Restore.


  • The Viper was released on the 18th of March, 2013 with Update 7.
  • On the Viper's barrel, the word Grineer VGrineer IGrineer PGrineer EGrineer R, which translates to "Viper" is inscribed in the Grineer Language. In earlier versions of the game this line of text was Grineer SGrineer EGrineer RGrineer BGrineer EGrineer RGrineer UGrineer S which translates to "Serberus", probably indicating an earlier name for the gun. The Viper's UI icon still shows a Viper with "Serberus" inscribed on it.
  • The Viper(s) uniquely has a distinct sound when its trigger is released. This could be a mechanism used to stop the bullet feed or to halt the cyclic action.
  • Until Update 17.0Shield Lancers fired their Vipers in three-round bursts, a holdover from when Shield Lancers used to be equipped with the Sicarus.


  • When equipped by Banshee, the Viper will clip entirely inside her fingers when idle.


  • An old screenshot of the Viper. Note the longer line of text on the barrel.
  • The current Viper texture with the word "Viper" inscribed on the barrel. Letter "i" appears slightly incorrect.

Viper Skins

Patch HistoryEdit

Update 22.12
  • Mastery Rank increased from 0 to 4
  • Damage increased from 16 to 17
  • Status chance increased from 1% to 11%
  • Reload speed increased from 1.1 to .7 secs
  • Ammo capacity increased to 420

Update 18.5

  • Added Viper conclave skin

Update 17.0

  • Conclave: Series damage increased in PvP

Update 16.4

Update 16.0

  • Visual and audio overhaul

Update 15.12

  • Fixed incorrect tint in Forest Camouflage skin.

Update 9.5

Update 9.0

  • Refined tint options

Update 8.3

  • Sound changes

Update 7.7

  • Reduced fire rate from 19.2 to 13.7

Update 7.x Weapon Balance

  • Damage increased from 14 to
  • Critical chance increased from 5% to 15%
  • Fire rate increased from 1100 to 1150
  • Reload time decreased from 1.15 to 1.1

Update 7

  • Added to the game

See alsoEdit

WeaponsDamageCompare AllCosmetics