Patent ID: 8104209

Claim:
A shotgun assembly comprising: a tube having a first end, a second end, and an opening on a side of the tube, the tube being configured to connect to a shotgun receiver; a pump grip configured to slide along the tube; a magazine well connected to the tube and being aligned with the opening, the magazine well having a first wall, a second wall, and a cavity configured to accept at least a portion of a shotgun magazine and the magazine well having one or more notches located in a bottom edge of the magazine well; a dynamic latch connected to the first wall of the magazine well and configured to selectively secure a shotgun magazine, the dynamic latch including: a body having a first end, a second end, and a cavity, the body being configured to connect to the first wall of the magazine well; a piston having a first end and a second end, the first end including a latch profile configured to selectively engage a firearm magazine, the second end being at least partially positioned within the cavity of the body; and a spring positioned between the piston and the body, wherein at least a portion of the latch profile extends into the magazine well when the body is connected to the first wall of the magazine well and when the spring is in an initial state; a lever connected to the second wall of the magazine well; and a shotgun magazine, wherein the one or more notches are configured to mate with one or more fins formed into the outside of the shotgun magazine.