Originally designed by Hilton R. Walker in 1981 as the Armsel Striker, the Street Sweeper uses a spring driven alloy cylinder and double action trigger mechanism to provide a semi-auto style rate of fire without restriction on ammo type in a compact package. This would be one of the few 12 gauge shotguns on the domestic market to earn the honor of being declared to lack a "sporting purpose", making it a Destructive Device under the terms of the National Firearms Act. Broad groove sight in the top of the receiver, with a forward pistol grip and rod ejector on the ventilated heat shield, manufacture markings on the front of the cylinder housing, "S/S" and "Cobray" branding on the plastic trigger housing, a top-folding steel stock, and a padded sling. Length of pull is 14 1/4 inches.