Revolver cylinder for a shotgun

Portions of a shotgun comprising:

• a cylinder body defining a rotational axis;
• wherein the cylinder body has portions forming an opening centered about the rotational axis and extending through the cylinder body;
• wherein the cylinder body has portions defining at least part of each of a plurality of shotgun shell receiving chambers which are parallel to and equally spaced from the rotational axis;
• wherein the shotgun shell receiving chambers have first ends on a first side of the cylinder body arranged to receive shotgun shell bases, and wherein the receiving chambers have second ends on a second side of the cylinder body which are parallel to and opposite the first side, the receiving chamber second ends defining openings through which a shotgun round exits;
• wherein a first direction along the rotational axis is defined from the first side to the second side;
• a cylinder pin captured within the opening centered about the rotational axis so as to prevent rotation of the cylinder pin with respect to the cylinder body;
• wherein the cylinder pin has a first end and a second end and extends from the first end to the second end in the first direction;
• wherein the cylinder pin has portions forming a central axial opening which extends along the rotational axis;
• a spring arranged to retract the cylinder pin into the cylinder body toward the second side of the cylinder body;
• and
• a trigger linkage mounted for movement in the opening centered about the rotational axis, the trigger linkage extending in the first direction for linking a trigger to a firing mechanism through the opening centered about the rotational axis;
• and
• an extractor mounted to the cylinder body on the first side of the cylinder body for movement in a second direction opposite the first direction, the extractor having portions which define at least a part of the plurality of shotgun shell receiving chambers so that shotgun shell bases of shotgun shells placed in the shotgun shell receiving chambers engage the extractor portions and are extracted by a movement of the extractor in the second direction.