AmeriGlo Tritium Rear Sights for Glock 42/43/43X/48 w/Green Tritium 2 Dot Black Outlines .256in H .165 Sq Notch Trooper MOS fit. This design enables quick alignment of the sight during acquisition and also provides for a more robust rear sight shield. The AmeriGlo Glock Rear Tritium Illuminated Weapon Sights come with a set of matched front and rear sights so you can switch out sights easily as your needs develop. One of the most popular aftermarket sectors for Tritium sights is AmeriGlo Inc. the makers of the original Glock factory night sights and the company that produces the ProGlo sights. Tritium night sights by AmeriGlo feature a photoluminescent Tritium material that is a bright sturdy and self-illuminating night sight. The front sight has a glare-reducing notch in the rear face and is a perfect complement to the ProGlo STRIKER front sight. The snag-resistant rear tab allows the use of a front sight while reloading the magazine with the load ammunition currently loaded in the magazine. Specifications for AmeriGlo Tritium Rear Sights for Glock 42/43/43X/48: Manufacturer: AmeriGlo Gun Make: Glock Gun Model: Glock 48 Glock 43X Glock 43 Glock 42 Rear Sight Color: Black Sight Style: Square-Notch Gun Type: Pistol Package Contents: AmeriGlo Tritium Rear Sights for Glock 42/43/43X/48 AmeriGlo GL-895R: Tritium Rear Sights for Glock 42/43/43X/48 w/Green Tritium 2 Dot Black Outlines .256in H .165 Sq Notch Trooper MOS fit