Thanks, I stand corrected. Perhaps I was thinking of something California specific -- I'm a little skid-dish ever since they required me to register my Colt target rifle as an assault weapon.
I have included a link to a gentleman who has a license to produce the SBS. He starts with a Baikal shotgun and makes it look really nice. He is located in Boaz, Ky., which is about 20 minutes south of Paducah, Ky.
The Striker/Street Sweeper is a revolving shotgun and it holds 12 shells. The "drum" is a cylinder with a spring around it. When fired the cylinder rotates under spring pressure and fires sort of like a double action revolver. It is loaded/unloaded like a single action revolver then the drum spring is wound so it will rotate when the trigger is pulled.