Hell yea, that's the Minigun.. The little brother of the M61 Vulcan, 20 MM gatling gun that's fitted into the F-16, F-18 and F-15 to mention a few.
Seen a cupple of demos of the Minigun by the USMC.. They fire that thing from a Huey chopper. those trazers looks like a waterfall coming out of that gun. And the sceary thing is.. only every fourth round is a trazer.. It fires .30 cal (same round as in the AG-3 of the Norwegian armed forces) rounds at something like 6000 rounds pr minute or so.. insane..