One of my top 5 Kuva weapons, this is my go to gun for Axi Disruption farms (Apollo, Sedna) and thus this build is geared towards killing Demolysts as quickly as possible

Create Viral + Slash combo by getting a Toxic progenitor ([Saryn], ...) and adding [Primed Cryo Rounds] and [Internal Bleeding]. The Chakkhurr forces an Impact proc on each shot and combined with its slow fire rate will result in 70% chance to apply an additional Slash proc as well (this doesn't even include the chance increase from MS).

[Galvanized Scope] and [Point Strike] both increase CC but combined at max stack can be overkill (285% CC), so one could flex for something like [Primed Firestorm], [Serration], [Bladed Rounds], [Hammer Shot].

[Galvanized Chamber] to increase MS.

[Primed Bane Of Grineer] is flexible with another damage mod like [Serration], [Heavy Caliber] if you [Hate] swapping builds

[Primed Fast Hands] is arguably a flexable slot, I [Hate] the reload time and PFH + max rank Primary Merciless brings reload under 2 sec, but PM itself at max brings reload down to 2.5 from 3.3 so personal choice here. Would recommend if running Deadhead. Personally I think this + Merciless is the best way in increase DPS for this weapon since the fire rate cannot be increased too high w/o sacrificing half of [Internal Bleeding] effect. Otherwise if Fire Rate preferred go [Vile Acceleration], [Primed Shred], or Speed Trigger.

Finally Vital Sense for +CD.

If you have a Riven for this, try to get some combo (or a groll) of:
Positive:

• Damage

• Critical Damage

• Fire Rate

Negative:

• Weapon Recoil

• Zoom

Arcane is personal choice, weigh the pros and cons of each to your playstyle / what you're willing to go without.