The Trijicon Suppressor Night Sights will not work for a Glock 48. You can, however, use the Trijicon DI Tritium and Fiber Illumination Night Sight set found using the following link.
https://www.opticsplanet.com/trijicon-di-night-sight-set.html?_iv_gun-make=glock&_iv_gun-model=glock-48