Viper
The Viper is a machine pistol of Grineer design issued to their Shield Lancers. It is the most portable weapon manufactured by the Grineer. Chambered in 9x18mm Makarov.Codex Entry:
"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."
Credits: Warframe By Digital Extremes
Features 2 variants: The Base and Wraith and 4 skins via ModularWorkshop.