The XS Sight Systems GL-M017P-4N minimalist night sights provide reliable low-light aiming for a wide range of Glock pistol models with clean uncluttered sight picture.XS Sight Systems GL-M017P-4N Minimalist Night SightsCompatible with Glock models 17 19 22 23 24 26 27 31 32 33 34 35 36 38Minimalist design for fast target acquisitionNight sight technology for low-light conditionsStandard height configurationIdeal for concealed carry duty use and tactical applications where quick sight alignment and reliability are essential in all lighting conditions.