Since its not optics ready you would need to have the slide machined or find a dovetail adapter to replace the rear sight

Andrew, I wound contact Velocity Precision Engineering Sir : https://velocitytriggers.com/product/smith-wesson-red-dot-mount/

No, this does not come with the appropriate slide cuts to add a red dot.

The optics ready version is this one.
budsgunshop.com/product_info.php/products_id/134511 />-----------
I emailed John at Maple leaf customs and he said he could mill a standard shield plus for any optic I wanted but doing aftermarket milling will void SW warranty.
mapleleaffirearms.com/

No the only optics ready shield plus is the performance center version with a 4" barrel, that one cost around $900, but includes a crimson trace reddot. They do not make an optics ready version in the short barrel, and they also do not offer an optics ready version that doesn't come with a reddot. I emailed SW a couple weeks ago because I wanted to buy an optics ready shield plus without the CT Dot as I planned on running a holosun 507k, they told me there are currently no plans to offer a shield plus like that