The World's Deadliest Shotgun

Certainly the world isn't violent enough. We need bigger and better guns. So here's one - The Atchisson Assault Shotgun, AKA Auto Assault-12 (AA-12).

The weapon uses a 8-round box, 20-round drum, or 40-round drum magazine. It is designed to fire three different types of 12 gauge shells: Buckshot, Slugs, or Frag-12.

Impressive.