I'm having trouble finding an mounting (adapter) plate to install a Holosun HE507K-GR X2 on my M&P9 M2.0 OR Spec Series Pistol Kit. None of the plates in the S&W SCREW & PLATE KIT (part #3011897) that came in my Pistol Kit, indicate they would work with the Holosun.
I've looked at plates from...