Meet the GAU-8 Avenger by General Electric (“We Bring Good Things to Life.”)  This is the seven-barreled, 30 mm cannon the Air Force built their A10 Thunderbolt (a.k.a. “Warthog”) tank-killer around.  It fires its depleted-uranium-core armor-piercing shell (which is just over an inch in diameter) at 3900 rounds per minute.

This sucker is HUGE.  Below it’s shown (along with its 1350 round drum magazine) next to an old VW bug.

Personally, I hope never to be on the wrong end of one of these babies.