Chances are you don't have the riven. Replace the riven with [Vital Sense].

This build is designed around two things:

1. Taking advantage of [Primed Chamber]
2. Taking advantage of the 75% crit chance to capitalize on [Hunter Munitions] and therefore get extra slash damage on top of every shot thanks to multishot bonus and nearly 50% chance to proc Viral.

If you want to get freaky with this gun, replace a mod like [Vital Sense] with [Depleted Reload] though this will lower your average damage. However if you can get a riven that has negative magazine size but positive other stats, you can achieve the impossible.

While [Vigilante Armaments] would give us extra 10% status from extra multishot, we lose 20k damage due to the loss of the crit damage multiplier.

Alternatively, if you can add extra forma so you can make room for Corrosive combination for other use-cases, or other combinations if you are using this to deal damage to Lephantis or Profit Taker (though there are other weapons for those things).

Riven:

1. Crit Damage
2. Multishot
3. Damage/Crit Chance
4. Alternatively reload speed high enough if you cant get a near godlike riven
5. We want a negative Magazine size to replace [Depleted Reload]

You do more damage on average with DAMAGE over CRIT CHANCE. This is because even though your CRIT CHANCE will break 100% so you're always critting, the [Primed Chamber] is doubling the damage bonus even though its being diluted more than the crit chance.

I am sure 4+ years from now the riven system will turn into a system where you can reroll each individual attribute and negative. But by then the power creep will likely have eclipsed this weapon completely.