This is the optics adapter plate for the newly released GLOCK 43X MOS and 48 MOS with RMSc Optic Cut.
This plate is required to mount The Trijicon RMRcc.
**The RMRcc sealing plate is necessary for any type of water resistance**
The two optimal back up iron sight heights are:
.425? Front and Rear for a Low Witness BUIS Solution
.450? Front and Rear for a Higher Low Witness Solution
.500? Front and Rear for Lower 1/3 Co-Witness