does anyone know if a slide-mounted optic (i.e. Sig Romeo Pro) will 'clear' a typical 9mm suppressor? I'd hate to buy the slide/optic from Sig only to find out that the sights' red dot doesn't sit on top of (above) the can.

Thanks!
dh

My Romeo on my Sig 365XL cowitnesses with the iron sights.
Adding a plate to elevate the Romeo would then allow "suppressor "height.

Yes.

The Romeo Zero described above is a different animal.