Before you laugh at this project, this probably is the first airsoft project that is dual powered with the PolarStar Airsoft Fusion Engine, as a proof of concept on the possibilities of using more than one Fusion Engine on certain gun models (or even concept designs)... "It’s a Nerf Vulcan gun custom converted to use dual PolarStar Fusion Engines. It has all the features and function of a single Fusion Engine Nerf Vulcan, just twice as much BB slinging power!