AMERIGLO is committed to manufacturing the highest quality tritium, painted dot, fiber rod, and custom OEM iron sights for the modern hand-gunner. This sight set with flat black rear and serrated front was designed for use on Glock MOS pistols with Trijicon RMR/SRO and Holosun 407/507/508T optics. With the largest selection of set options for leading firearm brands, AMERIGLO brings a clear advantage to your shooting experience on and off the range. Features : For All Glock MOS Models with RMR/SRO/407/507/508T Will work with most optics co-witness 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.