Unfortunately, none of the manuals (Smith and Wesson owner’s, Crimson Trace pamphlet in the box, nor any addendum to the “package” with the gun and red dot.) indicated the plate.
Tried Google and found a older chart, but nothing with the current sight.
Message sent to S&W customer service. Will see how that goes.
Do you have a red dot or a laser?
Look at the bottom of your optic and you will see some small holes in the corners. Find the plate with small pegs sticking up that match the holes in the optic. Use that one.
It uses the same plate as the Vortex red dots.