After the 10 day CA criminal background check, I will be in possession of a very nice 642 S&W, 5-shot revolver CCW, which I purchased for $399.00. The mystery of the 642 with the Dash (-) 2 after 642 (642-2) is of unknown meaning to me. Help for the add-on number?

This thread may be helpful.

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642-1, M&P15 TS

Thanks Blues7. Apparently, the dash 2 is for the introduction of an internal lock feature. I will find how it works later.

My pleasure.

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642-1, M&P15 TS