This build was made not for the sake of having the greatest efficiency (for that, do check out the semi auto builds), but instead to utilize its ricochet augment.

[Serration] is arguably better than galvanized amplitude since both the arcane and [Galvanized Chamber] already requires killing and maintaining a countdown to work. Although [Serration] would prove to be inferior in dps when 3 or more statuses are already present on a target, it carries the benefits of being more likely to one shot an enemy, and making it easier for other conditions to be met. (the chances for you to proc impact or puncture are only 23%, therefore [Serration] would prove to be superior due to the 77% of the time where you would most likely only proc viral and slash, building up to merely the same 160% damage if you were to use galv amplitude instead.)

And since we're going for full auto, the importance of fire rate greatly fluctuates as it is way more impactful towards the weapon's dps. The minus 15% damage calculates as such: 100%(base) +165%(serration) + 360% (fully-stacked arcane) - 15% =610%. [Vile Acceleration] packs a whooping dps of 1.7 of itself instead of speed triggers 1.4, this ignoring the marginal 2.4% damage loss and accounting for [Critical Delay].

If you happen to be equipping a sentient, do try and throw on all the vigilante mods to increase your chance of getting enhanced crits.

Just use [Hammer Shot] instead of the bane mods if you don't like switching mods