A new build for my [Vaykor Hek] to go with my new Riven. Interesting Riven. Overframe doesn't show the range, but the projectile speed buff increases fall-off to 17.9-44.6. Nice, tight grouping, too. May swap Hunter Mummu for [Vigilante Armaments] and see which does better.
Note: The Riven basically takes up the toxin slot, so you can make a similar build without the Riven buffs by adding the Toxin 90 or 60/60 mod in its place. Less forma, too.
I've never forma'd a weapon 7 times, lol. It's freaking full.