The AmeriGlo GL333 is an extra-large, tall set of sights designed specifically to fit Glocks equipped with suppressors. The design effectively raises the entire sight picture for unimpeded viewing over the suppressor. For enhanced visibility, the front sight features green tritium with a bright lumigreen circle, while the rear sights consist of dual green tritium dots.Please note that this product is not compatible with Glock 42 and 43 models.