Always aim. Always aim for the head.

Replace Riven with [Point Strike].

Designed around Pax Charge for boss fights with limited Ambient™ ammo drops. Use controlled burst when sniping.

My build uses Guided Ordnance instead of [Agile Aim] but this mod appears to be missing from Overframe's primary Kitgun list. The exilus mod is optional and will save you a forma.

[Vigilante Supplies] can fit if you do not have a Riven. It can fit with a Riven if you swap [Infected Clip] for [Malignant Force], but this tradeoff will be an overall DPS loss and would only be worth considering if you are not using Pax Charge.

You want Primary Merciless on this build, despite the emphasis on headshots. The -30% reload time influences the delay of Pax Charge, which will go further than reduced recoil.

If you need more damage, replace [Primed Shred] with Primed Bane, but you will lose Punch Through.

If you want more damage still, replace [Primed Shred] with [Vile Acceleration] and save yourself a Forma in the process. Or spend 2x Forma to free up capacity to additionally install [Vigilante Supplies] and enjoy the absolute maximum this weapon can [Reach]. You will lose Punch Through and need to let off the trigger way more often.