The MC312 inertia driven, semi-auto shotgun that eats 3", 3.5", and 2.75" but with added 24" turkey-rib, mid-bead, fast-swinging barrel, a true Picatinny rail cut into the receiver, common mag tube threads, common choke tube threads, combination camo + cerakote finish, pistol grip stock, fiber optic front sight, and field-tested optics that come up like they are supposed to.