Patent ID: 6564691
Filing Date: 2003-05-20
Classification: F41A

Abstract:
A semi-automatic shotgun comprising:(a) a barrel having a bore with a breech at its proximal end and having seat-defining projections extending rearwardly from the breech, said barrel having a gas port at a location along the bore communicating with a gas cylinder having a piston; (b) a receiver having a side loading port and a bottom ejection port, said receiver receiving said barrel and a stock; (c) a connecting rod assembly extending along said barrel operably driven by said piston, said connecting rod assembly having an axially extending connecting rod; (d) a carrier assembly having a recoil spring movable to a compressed position by said connecting rod assembly, said carrier assembly defining a shell receiving space and including a carrier arm pivotally secured thereto; (e) a bolt assembly having an upper bolt member and a lower bolt member, said lower bolt member having a face and receiving a firing pin, locking lugs associated with said lower bolt member, said locking lugs being engageable in said barrel seat defining projections when said lower bolt is in a forward position, said upper bolt member being operably connected to said connecting rod and moveable relative to said lower bolt member whereby rearward movement of said connecting rod will move said upper bolt to release said lugs allowing said lower bolt to move rearward to a position to engage a shell dropped from the carrier assembly; and (f) a trigger assembly including a trigger shoe, sear and a trigger carriage operationally connected to a hammer, said hammer being moved rearwardly by said lower bolt and returned to a ready-to-fire position by the sear.