XS Sight Systems Optic Mount Bundle Features The XS Sights Optic Mount Bundle gives Glock MOS owners a ready-made sight and plate combo eliminating the guesswork and math typically involved in matching an optic plate to the correct sight height. Designed for RMR footprint optics the CNC machined steel plate offers 30% more thread engagement than many factory and aftermarket plates which helps prevent optic failure from recoil-induced loosening over time. An additional recoil lug stabilizes the optic further and reduces the stress placed directly on the mounting screws. The low co-witness height keeps the sight picture clear of distractions in the optic window while still providing a true backup option if the optic fails. The kit includes a tritium front sight for low-light visibility along with a blacked-out serrated rear sight that reduces glare and keeps the shooter s focus on the front sight picture. A BlackNitride surface treatment is applied for enhanced corrosion resistance helping the plate and sights hold up to regular carry and duty use. Everything needed for installation is included in the kit from blue and red threadlocker to the screws and torx bit required for a complete setup. Compatible with Glock MOS models 17 19 34 45 47 and 49 the XS Sights Optic Mount Bundle is available for sale at GrabAGun. XS Sight Systems Optic Mount Bundle Specifications Manufacturer: XS Sight Systems Model: Optic Mount Bundle Color: Black Sight Type: Tritium Compatible Hosts: Glock MOS 17 19 34 45 47 49 Available At: GrabAGun