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 MOS pistols with Trijicon RMR/SRO and Holosun 407/507/508T optics. Whether you use your firearm for personal protection or just plinking at the range AmeriGlo sights has you covered. Features : 3XL Height Tritium Front Sight (White Outline) with Black Rear For All Glock MOS Models with RMR/SRO/407/507/508T 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.