Product DescriptionNight Fision's Optic Plate + Backup Sight Combo gives Glock MOS shooters a rugged red-dot mounting solution with dependable co-witness sights in one box. The optic plate is precision-machined from premium 17-4 stainless steel, finished with a durable nitride coating, and built to tight tolerances to resist recoil and maintain zero. The included lower 1/3 co-witness sight set features a tritium front sight with a high-visibility yellow ring and a blank, serrated rear for a clean, glare-free sight picture. The plate fits Trijicon RMR, Holosun 507c, and other optics sharing this footprint, and it's compatible with most Glock Full-Size and Compact MOS pistols (excluding Slimline models). Hardware and an installation tool are included for an easy setup.Product HighlightsPrecision 17-4 stainless steel optic plate with nitride finish for strength and corrosion resistanceLower 1/3 co-witness sight set: tritium/yellow front and blank serrated rear for fast, uncluttered aimingFits Trijicon RMR, Holosun 507c, and other optics with the same mounting footprintDesigned for Glock MOS Full-Size and Compact models; excludes Slimline MOSIncludes mounting hardware and installation tool; optic plate thickness approximately 0.2 inSpecsCompatibility: Glock MOS models (e.g., 17, 19, 45, 47); excludes Slimline MOSOptic Footprint: Trijicon RMR / Holosun 507c and compatibleCo-Witness Height: 330-353 sight height for lower 1/3 co-witnessMaterial: 17-4 stainless steelFinish: Nitride coatedOptic Plate Thickness: 0.2 in (approx.)Included: Optic plate, tritium front sight (yellow ring), blank serrated rear sight, screws/hardware, installation toolColor: Black components; yellow front sight ringUPC: 810138541074Manufacturer Part Number: GLK-OPBS-RMR-MOS-YGZXBrand: Night FisionDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.