Part of the reason for the invention of the AA-12 shotgun was from lessons learned from the Vietnam War (shouldn't be too surprising when the shotgun was originally designed in 1972).
In the jungles of Vietnam it was noted that shotguns were a popular weapon especially in the hands of the pointman of a formation because it could put alot of lead in the air at close range quickly. The limitation at that time was you only usually had 4-6 shells of 00 buckshot coming out as fast as you could rack the pump. The natural progression from that was "How can we get something that fires faster than a pump and holds more than a half dozen shells?"
Enter the AA-12 with an 8-round detachable box magazine or a harder to detach 20-round drum. Fire those shells at a sedate 200-300 shells a minute, and you are throwing a lot of buckshot downrange in a short period of time in a jungle environment. It also ended up showing later on that it could be useful in urban environments for similar reasons.
In the jungles of Vietnam it was noted that shotguns were a popular weapon especially in the hands of the pointman of a formation because it could put alot of lead in the air at close range quickly. The limitation at that time was you only usually had 4-6 shells of 00 buckshot coming out as fast as you could rack the pump. The natural progression from that was "How can we get something that fires faster than a pump and holds more than a half dozen shells?"
Enter the AA-12 with an 8-round detachable box magazine or a harder to detach 20-round drum. Fire those shells at a sedate 200-300 shells a minute, and you are throwing a lot of buckshot downrange in a short period of time in a jungle environment. It also ended up showing later on that it could be useful in urban environments for similar reasons.


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