Ameriglo Black Night Sights - Flat Black REAR Only - Classic Style .256 Height .150 Width For Glocks 17192223242627333435373839. This Tritium Night Sight from Ameriglo is made with Swiss Tritium that will burn for an incredibly long time without fading or dimming. The AmeriGlo Tritium Glock Pistol Rear Black Night Sight is made using an incredibly durable US bar stock steel that is guaranteed be extremely reliable and long lasting. This Ameriglo Night Sight is made for various Glock models so you can have the perfect sight for your favorite weapon. For a great way to improve your low light and night shooting choose the Ameri-Glo Rear Black Glock Handgun Illuminated Night Sight. GC-65R-180: Ameriglo Black Rear Night Sight - Flat Black Classic Style .256Hx.180W Fits Glocks 17192223242627333435373839 GC-69R-180: Ameriglo Black Rear Night Sight - Flat Black Classic Style .272Fx.180W Fits Glock 20212930313236 GL-410: Ameriglo Black Rear Night Sight - Flat Black Classic Style .272Hx.165W Fits Glock 20212930313236 GL-408: Ameriglo Black Rear Night Sight - Flat Black Classic Style .360Hx.150W All Fits Glocks Needing Taller Rear GL-406PRA: Ameriglo Black Rear Night Sight - Flat Black U-Notch Pro Style .272Hx.180W Fits Glock 20212930313236 GL-400: Ameriglo Black Rear Night Sight - Classic Style .256Hx.150W Fits Glock 17192223242627333435373839 GL-401: Ameriglo Black Rear Night Sight - Flat Black Classic Style .272Hx.150W Fits Glock 20212930313236 GL-409: Ameriglo Black Rear Night Sight - Flat Black Classic Style .256Hx.165W Fits Glock 17192223242627333435373839 GL-405L: Ameriglo Black Rear Night Sight - Serrated Black Pro Style .256Hx.180W Fits Glock 17192223242627333435373839 GL-406L: Ameriglo Black Rear Night Sight - Serrated Black Pro Style .272Hx.180W Fits Glock 20212930313236 GL-406P: Ameriglo Black Rear Night Sight - Flat Black Pro Style .272Hx.180W Fits Glock 20212930313236 GL-405P: Ameriglo Black Rear Night Sight - Flat Black Pro Style .256Hx.180W Fits Glock 17192223242627333435373839 Specifications for AmeriGlo Black Night Sight Rear Sight for Glocks - Swiss Tritium: For: Various Glock Handgun Models Material: Bar Stock Steel Illumination: Swiss-Made Tritium Type: Rear Sight Features of Ameriglo Tritium Black Handgun Night Sight for Glocks - Rear Sight: Made from Bar Stock Steel Durable Lightweight Front Sight Package Contents: Ameriglo Black Rear Illuminated Tritium Night Sight for Glocks GL-400: Ameriglo Black Rear Night Sight - Classic Style .256Hx.150W Fits Glock 17192223242627333435373839