To disassemble a Smith and Wesson Chiefs Special CS45 airsoft pistol, first, ensure the pistol is unloaded and the magazine is removed. Then, locate the takedown lever or pins on the pistol and follow the manufacturer's instructions to disassemble the pistol. Use the appropriate tools, such as a punch or screwdriver, to carefully remove the pins or lever to separate the slide from the frame. Be sure to keep track of all parts and follow the reverse process to reassemble the pistol correctly.
Recommend you find a good gunsmith.
You can get manuals at the Smith and Wesson website.
Ask a gunsmith for help
check out this video: In general, Sigma pistols disassemble like a Glock. http://www.youtube.com/watch?v=O7ws0gAQlpY
With no other information supplied, 100-500.
Best left to a trained gunsmith. For normal cleaning, no disassembly is needed.
Go to S&W's web site and request a owner's manual. They will send it to you for free.
About $400.
Smith&Wesson model 14
You can request or download a manual from the S&W website. If that doesn't work for you, find a good gunsmith.
100-1000 depending on EXACTLY what you have.
Smith and Wesson Chief's Special Model CS45