C&H Precision Weapons Trijicon RMR Sealing Plate. Proper installation permits the optic to be submerged to a depth of 66 feet for up to one hour without leaks. Specifications for C&H Precision Weapons Trijicon RMR Sealing Plate: Manufacturer: C&H Precision Weapons Red Dot Sights-Footprint: RMR Optic Cut: Trijicon RMR Fabric/Material: 6061 Aluminum Weight: 0.175 lb 0.125 lb Length: 6 in Width: 4 in Height: 0.25 in Features of C&H Precision Weapons Trijicon RMR Sealing Plate Allows the rmr to be submerged up to 66ft for up to 1 hour without leaks Compatible with all Trijicon manufactured rmr pistol mounts Made from stainless steel RMR Sealing Plate Fits RMR Pistol Mounts Official Trijicon RMR Accessory Professional Installation Recommended Package Contents: C&H Precision Weapons Trijicon RMR Sealing Plate C&H Precision Weapons RD-RMR-SEALING-PLATE: Trijicon RMR Sealing Plate