Use burst fire mode.
As a Kuva weapon you will start with a element attached to the weapon dependent on the warframe you killed your lich with. Go with a starting Toxin based weapon, allowing you to only need to use one slot on mods for elemental combo of Viral as in this build with cold, or corrosive with electric, or gas with fire. the three go to faction killers.
Also swap out vig Armaments for [Argon Scope] for a big damage boost if your happy with head shots, or a riven.