The C&H Precision RMR Sealing Plate provides exceptional waterproof protection for your Trijicon RMR red dot sight allowing submersion up to 66 feet for up to 1 hour without leaks.RMR Sealing Plate for Trijicon RMR opticsWaterproof to 66ft depth for 1 hour submersionCompatible with all Trijicon manufactured RMR pistol mountsPrecision machined stainless steel constructionAnodized finish for durabilityMade in USA by C&H PrecisionPerfect for tactical applications marine environments or any situation where your RMR sight needs reliable waterproof protection. Precision manufactured on HAAS CNC machines with multiple quality checks to ensure perfect fit and performance.