Trijicon RMR Mount Sealing Plate Description With the seal plate installed, the RMR can be submerged up to 66ft. for at least one hour without leakage. Made from stainless steel and weighs 2.8 g. Compatible with the all Trijicon manufactured RMR pistol mounts. Features: 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 Made in the USA Professional Installation Recommended Product Details: Manufacturer: ‎Trijicon Part Number: ‎RM63 Item Weight: ‎0.01 ounces Package Dimensions: ‎5 x 2.91 x 2.05 inches Item model number: ‎RM63 Is Discontinued By Manufacturer: ‎No Color: ‎Matte Black Material: ‎steel Item Package Quantity: ‎1 Batteries Included?: ‎No Batteries Required?: ‎No Date First Available: October 28, 2013