Trijicon HD XR Suppressor Height Night Sights for Glock Large Frame MOS Yellow

A red dot on a Glock large frame MOS slide needs backup irons tall enough to show up in the window. This is the suppressor height HD XR set for that job, with a yellow front outline.

Front sight duty falls to a tritium lamp under a domed sapphire lens that Trijicon rates 2X brighter to quicken sight acquisition. The photoluminescent ring around it handles daylight, and the angled, serrated U notch rear reduces glare and aids front sight focus, so the front post is the thing the eye lands on. Nothing here takes a battery. Tritium glows on its own, dot or no dot.