If you go to You-Tube and type in disassemble of Smith and Wesson model 915;there should be a video of the steps needed to take down your smith and Wesson semi-auto 9mm.
You can get manuals at the Smith and Wesson website.
Ask a gunsmith.
If you contact Smith and Wesson directly,they should be able to provide the information that you seek.
Ask a gunsmith for help.
Best left to a gunsmith.
Best to ask a gunsmith for help.
Best left to a trained gunsmith.
You need the help of a gunmsith
Best left to a gunsmith.
Best left to a gunsmith.
Best left to a trained gunsmith.