This is a hybrid incarnoff and incarnon mode build. Where you will constantly swap between incarnoff and incarnon modes, but due to Primary Crux you will most likely be able to stay longer in incarnoff mode.

MOD BREAKDOWN

• Primed Point Blank/[Galvanized Savvy]: due to incarnon bug ignoring evolution bonuses, [Galvanized Savvy] is only 60% effective (i.e. gives equivalent of 48% dmg per status). With 5 statuses in incarnOFF mode this is equivalent to 240% dmg, but with incarnON mode we only have 2 statuses which is effectively only 96% dmg. You also start off with +0% dmg until you land a kill. Primed Point Blank on the other hand gives a non-conditional 165% damage which is always active and doesn't fluctuate. Personally I prefer having the consistency of Primed Point Blank in this case.
• Galvanized Hell: mandatory multishot. Multishot also double dips status DPS on beams for incarnon mode
• Elements: Primed Charged Sell + Tox Barrage : makes corrosive status which has good raw damage especially against grineer and can be combined with Nourish which is a very common subsume to get both Viral + Corrosive. You can also run viral with Primed Chilling Grasp instead particularly if not using any Nourish.
• Crit Decel + Primed Ravage : mandatory crit mods
• Magnetic Strafe: gives fire rate and magnetic status which helps kill thrax/eximus
• [Shotgun Elementalist]: gives status dmg and magazine capacity. Flexible for [Primed Ammo Stock] for magazine capacity but status damage helps any heat procs from incarnon mode and also electric procs from magnetic status on overguard break (double dips)

EVOLUTIONS

Evo II: Reified Bane +10 dmg, and another +10dmg after reload from empty OR Fortress Salvo if you have armor > 450 (punchthrough is great for crowd clear).
Evo III: Ready Retaliation +100% reload after reload from empty
Evo IV: Critical Parallel +20% cc, +0.5 cd