If you don't have a riven, replace it with Galvanized Aptitude for 1.43M burst DPS / 734k sustain
Intended to be used with [Mag] to make consistent headshots easy; firing into the top half a [Mag] bubble quickly builds headshots and headshot kills. In practice, it is hard to [Reach] a full stack of 5 headshot kills, but you usually have 1–2 stacks, which is still more effective than a conventional build. Does okay without [Mag], but a conventional build is easier to work with
More conventional versions:
Crit (1.13M burst DPS, 580k sustain): https://overframe.gg/build/8412/
Bleed (841k burst DPS, 506k sustain): https://overframe.gg/build/213482/