Forward Controls Design BIS Pistol Sight Glock 43X and 48 Black BIS 43x/48 no tritium. Specifically made for Glock G43X and G48 these sights are based on the superb Ameriglo GL-527 with a front sight height of 0.450in and a rear sight height of 0.554in this sight sets provide lower 1/3 co-witness with the Trijicon RMRcc when used with our OPF-G43X/43 RMRcc on GLOCK's G43X and G48. BIS 43X/48 consists of the following: Front sight serrated no tritium or white outline; Rear sight serrated. BIS 43X/48 is slightly different from GL-527 on which it's based. These FCD particular changes are: Front sight back strap angle is steeper (25 degrees on the serrated non-tritium front sight 20 degrees on non-serrated tritium front sight) to mitigate snagging when the pistol is drawn from and out of the holster where it's likely to encounter clothing and the front sight's top corners are softened. Rear sight is horizontally serrated. Specifications for Forward Controls Design BIS Pistol Sight: Manufacturer: Forward Controls Design Gun Make: Glock Gun Model: Glock 48 Glock 43X Color: Black Gun Type: Pistol Front Blade Height: 0.45 in Rear Blade Height: 0.554 in Package Contents: Forward Controls Design BIS Pistol Sight What firearm models does the manufacturer say Forward Controls Design BIS Pistol Sight is compatible with? The manufacturer suggests that Forward Controls Design BIS Pistol Sight is compatible with Glock 43X Glock 48Forward Controls Design BIS 43x/48 no tritium: BIS Pistol Sight Glock 43X and 48 Black