I saw the firing mech and it looked to be very similar to my direct feed bbmg design in which you utilize a hopup chamber and you have the co2 imported via the back.. it utilizes a combination of venturi effect for feeding and spring assisted feeding. In this case, he used an electric mag feeding system rather than a spring assisted to allow for higher capacity of ammunition.
here is the thread on the original direct feed bbmg design:
http://www.spudfiles.com/forums/bbmg-ai ... 16151.html
And this thread as well:
http://www.spudfiles.com/forums/co2-inf ... 20236.html
Anyways here is the link to the website with details of the gun:
http://kuba-t1000.com/minigun/index.php ... ls_minigun
here are some picture hijacked from the website:












