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A full-auto pistol known as the most compact and lightweight weapon of the Grineer arsenal. Though it has a small Magazine Capacity, 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 Credits64.png 2,500; it is also a requisite ingredient for TwinVipers.png Twin Vipers (x2) and Hystrix.png Hystrix.



  • Tied with ViperWraith.png Viper Wraith for fastest fire rate of all single-handed pistols.
  • Normal Attack
    • High effective fire rate
    • High max ammo
    • Very high reload speed
    • High disposition


  • Mediocre accuracy.
  • Inefficient ammo economy.
  • Normal Attack
    • Below average crit chance
    • Below average magazine
    • Very low damage
    • Below average status chance
    • Very low crit multiplier



The Viper's blueprint can be purchased from the Market.

Manufacturing Requirements
Time: 12 hrs
Rush: Platinum64.png 25
MarketIcon.png Market Price: Platinum64.png 75 Blueprint2.svg Blueprints Price:Credits64.png20,000


  • 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 Mod TT 20px.png Pistol Ammo Mutation mod can help regain lost ammo when needed. Alternatively, use Mod TT 20px.png Pistol Scavenger aura or bring along Squad Ammo Restore.


  • The Viper was released on the 18th of March, 2013 with Update 7.0 (2013-03-18).
  • On the Viper's barrel, the word Grineer V.svgGrineer I.svgGrineer P.svgGrineer E.svgGrineer R.svg, which translates to "Viper" is inscribed in the Grineer Language. In earlier versions of the game this line of text was Grineer S.svgGrineer E.svgGrineer R.svgGrineer B.svgGrineer E.svgGrineer R.svgGrineer U.svgGrineer S.svg 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 17.0 (2015-07-31), Shield Lancers fired their Vipers in three-round bursts, a holdover from when Shield Lancers used to be equipped with the Sicarus.png Sicarus.


  • When equipped by BansheeIcon272.png Banshee, the Viper will clip entirely inside her fingers when in idle animation.


Viper Skins Edit

Patch History[]

Update 22.12 (2018-02-09)

  • 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 (2016-03-04)

  • Added Viper conclave skin.

Update 17.0 (2015-07-31)

  • Series damage increased in PvP.

Update 16.4 (2015-04-23)

  • Available for use in PvP.

Update 16.0 (2015-03-19)

  • Visual and audio overhaul.

Update 15.12 (2015-01-30)

  • Fixed incorrect tint in Forest Camouflage skin.

Update 9.5 (2013-08-09)

  • Added Desert-Camo Viper skin.

Update 9.0 (2013-07-13)

  • Refined tint options.

Update 8.3 (2013-07-04)

  • Sound changes.

Update 7.7 (2013-04-03)

  • Reduced fire rate from 19.2 to 13.7.

Update 7.x Weapon Balance (2013-03-22)

  • Damage increased from 14 to 16.
  • Critical chance increased from 5% to 15%.
  • Fire rate increased from 1100 to 1150.
  • Reload time decreased from 1.15 to 1.1.

Update 7.0 (2013-03-18)

  • Introduced.

See also[]