Lurker Bolt for Empire Mini
I have a used Lurker Bolt I had in my Empire Mini, Works great, I just went to a Boss Bolt and don't need this anymore.
It comes with the bolt, spacer, and o-ring. It uses your stock spring. It reduced recoil and was more effecent than the stock bolt.
Setup: Empire V3 Mini, Dye V3 Rotor w/ i4 Mask, 45/4500 Crossfire tank