Glocks may rock, but the GAU-8 rules!
You aware that there's a scaled-up semiauto version of the Finnish L/39 Lahti antitank rifle that uses the 30mm round of the GAU-8 as anti-helicopter medicine, against the ground attack Hinds in particular. They were developed as a backup plan in the event the Stingers supplied to the Mujahadin in Afghanistan and the Contra's in Nicaragua didn't work as well as was hoped.
Since even the 20mm Lahtis weigh in at around 100 pounds or so, I'd expect a 30mm version would be even worse in that respect. But as a weapon for arming light *technical* trucks or HUMVEES, it has interesting possibilities.
