The Trijicon RMR Mount with Integrated Night Sights combines red dot optic mounting capability with premium Bright & Tough Night Sights featuring green tritium illumination and black outlines for 1911/2011 pistols.Trijicon RMR/SRO Mount with Integrated Night SightsGreen tritium front and rear sights with black outlinesCompatible with 1911 and 2011 pistol platformsBright & Tough construction for durabilityAllows co-witnessing with RMR red dot opticsPerfect for tactical and competitive shooters who want the versatility of red dot optics with reliable backup iron sights that glow in low-light conditions.