Detron
The Detron is a pistol shotgun that chamber in 12 guage.Codex Entry:
"The sleek lines of the Detron conceal its ferocious nature. The hand cannon's semi-automatic action takes down enemies with speed and efficiency."
Credits: Warframe By Digital Extremes
Features 3 variants: The Base, Tenet and Mara and 1 skin via ModularWorkshop.