Here is a good reference about the parts of a sxs. It has some pictures of some of the parts the guys were mentioning. This is the best place to ask questions about sxs shotguns.

Good luck. Some of the Parker lovers out there haven't slept since you posted.

http://www.hallowellco.com/abbrevia.htm

Duke

Work as if you were to live a hundred years. Pray as if you were to die tomorrow. Benjamin Franklin