The Auto Assault-12 (AA-12), originally designed and known as the Atchisson Assault Shotgun, is a shotgun developed in 1972 by Maxwell Atchisson.
AA-12 (Auto Assault-12) — автоматическое ружьё - дробовик, созданное Максвеллом Атчиссоном на базе более ранней разработки Atchisson Assault Shotgun.