what I really like about this is it will be the first gatling gun design I've seen that actually offers some functionality, usually people just make them to look cool, the rotating barrel mechanism is just a design vanity which is hard to implement and reduces performance at best.
This one however looks a bit different, the gatling design is functional and should keep the chambers and barrels cooler. one of the main problems people cite with automatic combustions is overheating, although that's theoretical as nobodys actually made one, yet.
keep those pictures coming
