AmeriGlo 5XL Tall Green Tritium Black Outline .407in front FlatBlack .507in Rear Fits all Glock Except 42 & 43 5XL up to 0.397in DH. Complete with a nitride finish the AmeriGlo Glock Tritium Night Sight Set features a green tritium bulb with a patented alignment guide that allows you to easily align the sight pin with the square notch of the sight ensuring the reliability you need in the field. This night sight set also features an auxiliary ring for ambidextrous use which takes your choice of when and where to use your night sight. Setting the sights of your Glock at suppressor height ensures you get the best sight picture possible as well as a clear view of the front sight without having to crane your neck to get an eye to the front sight. The AmeriGlo Glock Tritium Adjustable Sight Set also fits all Fits Glock but not 42 & 43 2XL DH. Specifications for AmeriGlo Glock 2XL Tritium Night Sight Suppressor/Optic Height Set Tall Green Tritium 3 dot sight set black outlines: Manufacturer: AmeriGlo Color: Black Sight Style: Square-Notch Package Contents: AmeriGlo Glock Tritium Night Sight Suppressor/Optic Height Set AmeriGlo GL-812: 5XL Tall Green Tritium Black Outline .407in front FlatBlack .507in Rear Fits all Glock Except 42 & 43 5XL up to 0.397in DH