The AR12 is a semi automatic shotgun that looks and functions like an AR15. I’ve shot it once so it is basically brand new. I still have the manuel for it. Barrel Length: 20 inches Chamber: 3 inches Capacity: 5 + 1 Detachable front and rear sight posts. Comes with two 5 round mags and one 20 round drum mag. Text me if you have any questions. Open to negotiations.