Trijicon RMR Mount Features The Trijicon RMR Mount replaces the factory rear sight on the Sig Sauer M17/M18 with an integrated mounting platform built specifically for the Trijicon RMR footprint giving shooters a secure purpose-built base for their red dot. The Bright and Tough tritium night sights built into the mount glow green with a black outline providing reliable low-light aiming reference even if the red dot s battery fails. Because the rear sight is fixed to the mount windage corrections are made by drifting the front sight rather than adjusting the rear a detail best handled by a professional gunsmith during installation. This integrated design keeps the sight picture consistent between the RMR and the backup irons. Trijicon backs the tritium lamps in this mount with a 12-year warranty reflecting the long service life shooters can expect from the night sight inserts. The mount ships as a complete kit ready to install on the commercial variant M17/M18 giving duty and competition shooters a dependable red dot solution without sacrificing iron sight backup. This setup is especially valuable for concealed carry and duty use where a red dot failure in the field should never leave a shooter without a usable sight picture. For M17/M18 owners seeking a proven RMR mounting solution with integrated night sights the Trijicon RMR Mount is available for sale at GrabAGun. Trijicon RMR Mount Specifications Brand: Trijicon Fits: Sig Sauer M17/M18 Commercial Sight Type: Tritium Front Sight: Green with Black Outline Rear Sight: Green with Black Outline Warranty: 12-Year on Tritium Lamps Available At: GrabAGun