[Double Tap] is a ridiculous mess with huge potential. What happens when you combine it with tons of crit and damage buffs? Only good things, I imagine!

Notes:

• [Double Tap]'s damage buff stacks multiplicatively with damage and faction damage mods. This makes it effectively a 5x damage buff at max stacks.
• Extra bullets from multishot count for Double Tap.
• Overframe doesn't account for [Double Tap] when calculating conditional damage; the true conditional damage is five times the listed amount, though you should note that keeping Double Tap active constantly is much more intensive than keeping Galvanized mods or Primary arcanes active.
• [Aero Periphery] is actually statistically relevant here. Because [Double Tap] is a ridiculous mess, Aero mods boost the buff duration by a second each. It's not much, but it's a noticeable increase. You can keep it unranked if you don't like the zoom decrease effect.
• I don't know how Incarnon Genesis works on this, but the stats look even more ridiculous. Double Tap doesn't work with Incarnon Form Latrons as of Hotfix 33.0.3. Sad.
• If you have a good crit riven, swap [Bladed Rounds] for it.