I was thinking of putting a Holosun 407k/507K on my Shield plus 30sc. Does anyone know if you need a mounting plate? I read somewhere that the 30sc slide already has a Holosun cut configuration and no plate is needed where the 9mm needs a plate. Any info on this? Anyone running a Shield plus in 30sc with an optic?

I think I answered my own question. I took off the optic cover plate and the 30 sc slide has just 2 posts which is the Holosun K cut footprint and should fit a Holosun 407K/507K without a mounting plate.

That’s how my Equalizer was. I mounted an EPS Carry on it without a plate.

I wish S&W would machine the optics ready M&P’s with an RMR footprint