The Ameriglo GL5113 from AmeriGlo delivers a significant enhancement to your shooting experiences, both in and out of the range.As the fundamental standard in self-illuminating night sights, the Classic 3-dot design is highly favored among personal defense practitioners, military personnel, and law enforcement officers. It boasts a robust steel construction and incorporates Swiss-manufactured tritium light sources.This specific model features green tritium encircled by a white outline and is housed within a black frame. It is fully compatible with Glock 17/19/19x/26/34 of the Gen5 series.