I tried this at first with Heavy Caliber, but the accuracy goes down to freaking 1.7, and you'll have 'flyers' that go waaaay off target.

In that upper-right slot, you can put Vig Armaments, or Primed Cryo, or [Infected Clip] ... whatever you can do to increase damage. For a while I was running with Primed Cryo, but I'm going to try Vig Armaments to get the 2.5 multishot and maybe more instances of [Nightwatch Napalm] (some hidden DPS not reflected in these numbers).

[Wildfire] adds another round to the magazine, which is a real quality of life upgrade, but also makes the Viral and Heat damage equal for status purposes.

Later Notes:
I'm keeping [Vigilante Armaments]. The multishot is good, because you're more likely to have more [Nightwatch Napalm], which is interesting. This is a status build, which makes Hunter Munitions no good, because no crit, right? Nightwatch Napalm creates a fire-proccing AOE that lasts for several seconds doing a high amount of fire damage per round depending on overall damage, which is pretty high. Nightwatch Napalm is kind of acting like a work-around [Hunter Munitions] bleed, damaging enemies in its AOE, but also proccing them with fire, causing panic and staying in the AOE. It's ... strong.

My Kuva Ogris isn't maxed-out yet, Kuva Element-wise. It's still a fire [Ogris], but I'm looking forward to getting a magnetic one to act as the final fusion. That'll kill Steel Path Corpus shields, and also just add another proc for [Condition Overload]. Magnetic is probably the best added element for this build.

Much Later Notes
It's maxed now. 60% Magnetic. And you want to try a really cool upgrade? Replace Wildfire with Primed Firestorm. Oh yeah. Goooood fun.

• Also, replace [Serration] with Amalgam Serration if you have it. I use that everywhere I can. The extra 25% sprint boost is totally worth losing 5% serration damage.
• This is one of my main weapons I take with me on the Steel Path regularly.

Post Galvanized etc update
This is a very strong Primary. Mod it like this, and it'll make you fast, prime everything with lots of procs, and just outright melt a lot of enemies stuck in the Napalm, even Steel Path. Multishot's a big deal, because the more rockets, the more MASSIVE fireballs burning for 6 seconds with huge fire ticks, killing everything inside. This weapon is one of my favorites.