Suppressor Tritium Night Sight For Large Frame GlockA® - Night Sight Set, White Outline, For Large Frame Glocks

From Brownells.com

Trijicon has introduced a line of taller Bright & Tough Night Sights designed specifically for Glock handguns fitted with suppressors and to serve as co-witness iron sights for the growing number of shooters utilizing the Trijicon RMR with machined slides. The new offerings are available in multiple front / rear configurations for a variety of applications. Trijicon self-luminous Night Sights increase night-fire shooting accuracy by as much as five times over conventional sights. Equally impressive, they do so with the same speed as instinctive shooting- and without the need for batteries.