XS Sights Glock MOS Optic Plate RMR/507 Footprint Black Nitride Steel

The XS Sights Glock MOS Optic Plate is a precision mounting plate designed to swap or replace the factory optic cut cover on Glock Modular Optic System (MOS) pistols, allowing direct mounting of RMR and 507-series footprint red dot optics. This plate locks the optic down to the slide using the MOS screw pattern, providing a solid, repeatable mounting platform for any RMR-pattern or 507-pattern red dot sight.

The plate is CNC machined from steel and finished in a corrosion-resistant Black Nitride coating for long service life under hard use. XS Sights engineered this plate to deliver approximately 30% more thread engagement over the factory MOS plate for a more secure, repeatable optic mount, and it installs as an easy DIY drop-in using the included mounting hardware.

The plate fits a wide range of Glock MOS pistols including the Glock 17, 19, 22, 23, 24, 26, 27, 31, 32, 33, 34, 35, 36, and 38. With a compact 1.90" length, it sits low and co-witnesses cleanly with standard-height Glock iron sights.