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An AA Gun is a military structure purpose-built for destroying aircraft. In many of the games it appears in, it has long range and a high rate of fire for this role, as many aircraft are speedy and can fly directly past all structures, making a high damage per second value essential for these turrets to shoot them down.


It should be noted that AA Guns are only defined when aircraft exist in the game; the term is usually also reserved for the military genre. Many can only attack flying attackers, restricting their use to air defence.