Evolutions:

II - Fortress Salvo: Increase Damage by +42 (With Armor over 450: +2 Punch Through)

III - Kinetic Battle: -50% Weapon Recoil

IV - Absolute Valor: Increase Critical Chance by +22%

Headshot a few enemies to build up Incarnon, activate it, get headshot kills for [Galvanized Scope], till it reaches 5th stack and voila, your gun now is now a Red Crit Machine™

This is my first build and so maybe a feedback or two to let me know what I could do to improve this build would be greatly appreciated.
I recommend using [Volt] since his Electric Shield's give a big boost in Critical Damage but it works fine either way. Exilus Mods are of your choice, I don't really use it much.