The best advice I can give on full disassembly of S&W auto pistols is DON'T. These are not M1911/A1s, made to be taken down in the field with only parts of the gun for tools. They are tricky to disassemble and trickier to reassemble.
Normal barrel cleaning, plus a little spray cleaner and a small amount of a good gun oil is all that is needed to keep them shooting for a long time.
Jim
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