Board Thread:General Nerf discussion/@comment-27923854-20160426022623/@comment-3362895-20160505152241

Hogan milligan wrote: the swarmfire and vulcan both are electric plunger operated, like a airsoft gun. to increase power, you give it a stronger spring. to increase ROF, you do a voltage mod. If you do a spring upgrade, you are also likely going to want a voltage upgrade anyway, to overcome the higher resistance.