Daryl S - That's one awesome video. I'm not sure of the exact model, but the gun is a 7.62 mm GAU-17/A Minigun. 3,000 RPM to 6000 RPM. Pretty hard on hogs. Was absolute flying hell when used in a C-47 or AC-130 as a side mount. As an aside, the AC-130 also mounted a 105 mm M102 howitzer. Sure wouldn't want to look up and see one of those things overhead. They could put a 7.62 bullet in every square inch of a football field.