This cut includes the Suarez NSA2 plate.
 
This is for the G43, G43X & G48 only.
 
This will allow you to mount your RMR, Holosun 507C and other varients with the same footprint to the G43/43X/48 plateform. 
 
If you want the RMSc, Holosun 507K/407K, or Romeo Zero cut on your G43/43X/48, refer to the Glock Optic Cut options.