Sight set with serrated front and flat black Classic Style rear. Nitride treated alloy steel has low glare. Features : "Black serrated" .115" wide Defoor style front" "Black .115" square notch rear" 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.