The LPA SPR Glock sights are machined from solid steel using state-of-the-art CNC milling. The sights feature a streamlined compact low-profile design to reduce snagging. Precise adjustments can be made using the micro metric windage and elevation click screws on the rear sight. An allen wrench and adjustment screwdriver are included in the package. Will require gunsmithing and/or fitting, especially for front sight installation. FeaturesCNC milled from solid steelLow-profile designMicro metric adjustment for windage and elevation DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.