How do you disassemble 12 gauge Winchester shotgun?

First, determine which model Winchester 12 gauge you have. Then go to www.stevespages.com/page7b.htm and download the manual. For a more detailed set of disassembly instructions, go to the Gun Digest bookstore www.krausebooks.com/category/firearms_knives and buy the Gun Digest Assembly/Disassembly book on shotguns.