It’s already on it as delivered but will likely need a spacer or riser.
On my pistol, I unbolt the adapter and it matches a RMR mount pattern.
I’m not sure how far off the mount height will be. Likely I will have to mount a spacer depending on the stock. I plan on using one on a MPX one if these days.
Since it is an RMR base, there are several options out there.
Ok, I see what your doing. A riser is certainly going to be in order. Thanks for the info!