Meet the AA-12 (Auto Assault 12) automatic shotgun, a weapon that would be more at home in a first-person-shooter than in the real world. The 12 gauge gun will spit out 300 rounds per minute ...

These double-barrel shotguns are available in either an over/under or side-by-side configuration chambered in 12 or 20 gauge ... while a full-length rail runs along the bottom of the barrels ...

When the air is full of cackling ... to any semiauto shotgun design. Whereas some gunmakers put 16-gauge barrels on 12-gauge guns and call it good, Browning scaled the Auto 5 frame to 16-gauge ...