Ammunition
The AA-12 can use different types of 3" 12 gauge ammunition such as buckshot, slugs, or less-than-lethal rubber stun batons. Like most 12 gauge shotguns it can also fire flares or special Frag-12 19 mm fin-stabilized HE, HEAP, and sensor fused HEAB "air-burst" fragmentation shells that can detonate in mid-air.
Read more about this topic: Atchisson Assault Shotgun