James DeGroat is the feller in the green shirt, he and is brother are a class 2 manufacturers and make these....well re-make these. They start with demilled part sets. They are at many of the major shoots around the country. They had a 90mm high velocity anti tank gun at Knob Creek last spring along with the mini. The video was produced by Rober Silvers, he is the guy in the black jacket with the hat on. These are restricted title II arms available to only military, police or dealers/manufacturers with a written request for demonstration from a police or military department.
All hope is not lost thought....there are a few transferable miniguns around and last one I saw was asking $250,000