Tritium Night Sights designed for defensive shooting and comfortable concealed carry. XS Tritium Big Dot Night Sights are designed for: - Snag free design for easy draw from holster without catching clothing - Large front sight to improve speed of front sight acquisition - V-Notch rear sight provides a large field of view for greater target identification - Tritium lamps aid sight alignment in low/dark light environments - Red Dot battery boxes that measure taller than 0.275 above the top of the slide will obscure the sights - Our DXT Big Dot Night Sights will allow you to get on target fast focus on the front sight and make a lethal/reliable shot. - Item Number: GL-0004S-5 - Fits: Glock Supressor Height 171922-24262731-3638 - XS Suppressor/Optic height sights will work with suppressors up to 1.375