AmeriGlo sights are constructed from high quality materials in order to provide you with a superior aftermarket sight option for your firearm. This sight set with flat black rear and tritium front was designed for Glock 43X and Glock 48 MOS pistols with Holosun 407/507K optics. Whether you use your firearm for personal protection or just plinking at the range AmeriGlo sights has you covered. Features : L Height Tritium Front Sight (LumiGreen Outline) with Black Rear For Glock 43X/48 MOS w/Holosun 407/507k GLOCK is a registered trademark of GLOCK Inc. 3CR Tactical is not affiliated with, endorsed by, or sponsored by GLOCK Inc. Any reference to GLOCK products is for identification and compatibility purposes only.