I'm kinda torn right now between Amalgam Serration and Galvanized Aptitude. The status difference isn't really enough to do anything meaningful but it's okayish I guess.
Don't use Hunter Munitions with this thing. It's already extremely weighted towards slash, like 5-5-90 IPS.
Split Flights turns this thing into a damn shotgun and drastically increases your dps at lowish range but requires extremely fast draw time/fire rate. Unfortunately we need [Critical Delay] in order to break into red crit territory. Unfortunately it also requires you to be consstantly firing the weapon and hitting your shots consistently. This makes Thunderbolt a great pick for getting more hits-per-shot in but you can get better dps and procs out of Fanged Fusilade due to the weighting. If you're concerned about buff uptime you can swap in for Galvanized Diffusion for lower dps but higher accuracy, making it far more reliable at range.
Obviously this is made with the incarnon leaks in mind since you can get better dps out of the same build on a [Daikyu] with Internal Bleeding.
Theoretically you could use an unranked Malignant Force and Rime Rounds but you lose out on so much damage by doing so.
Hammer Shot is honestly worse DPS than Vital Sense i just use it to make the procs easier.
Argon Scope because it's more reliable than Galvanized Scope with the 15% extra crit. You're gonna be killing with procs, not hits.