Which shotguns are legal in California?

Below are the current guidelines for sending a shotgun to California

— a shotgun needs to have a barrel length greater than 18″ and an overall length greater than 26″. [PC 12020(c)(1)]
–a semi-auto shotgun cannot accept detachable magazines. [PC 12276.1(a)(7)]
— a semi-auto shotgun cannot have both a folding/extending stock and a pistol grip or a vertical forward grip. [PC 12276.1(a)(6)]
— a shotgun cannot have a revolving cylinder. [PC 12276.1(a)(8)]