You put shells in the magazine.
Steves Pages has a PDF manual for hundreds of firearms including the Charles Daly.
A pump or auto suppose to be plugged so no more than 2 shells in magazine and 1 in chamber
350.00 bucks don't let them cheat you.
100-400 USD depending on condition
Charles Daly has imported semiauto shotguns from Italy and Turkey. Would need to know exactly which Charles Daly you have. You can also check the Charles Daly/KBI website for manuals. firstname.lastname@example.org
Serial numbers are less important in pricing than information on condition .
the extractor might be missing or broken The best thing you can do is take your gun to a qualified gunsmith.
The value of a Charles Daly auto-pointer would actually depend on a number of factors. The main factor that would be considered would be the condition of the auto-pointer.
I believe only Charles Daly offers barrels for its guns. I haven't found them anywhere else. You will find an 18 inch, 12 ga. slug barrel at: http://www.charlesdaly.com/HTML/products/accessories/accessories.asp
2 in the magazine, 1 in the chamber when hunting. For home defense and the range, a 10 round magazine limit is in effect if and only if the shotgun is Semi-Auto or takes a detachable magazine. A tube fed pump-action does not follow the regulation from what I have read.