This is a custom built Mossberg model 590 shotgun that has been converted into a special purpose short barreled shotgun (SBS). Fitted with a Choate side folding buttstock and a tactical short pump handle held on by two additional screws. Fitted with a side saddle shell holder. Features Mossberg rifle sights with Trilux white outline inserts. Ported barrel with a 2 3/4 inch chamber and cylinder choke. The top of the receiver has the factory sliding safety, and it is drilled and tapped for a scope base.