The ZEV Technologies fiber optic sight sets are an inexpensive addition that a Glock owner can make to their firearm. The right sight set will improve your shots on target dramatically over a factory sight set. Notch width of .140 and notch depth of .145 will allow you enough room to keep your eyes on target during transitions. The ZEV Technologies V2 Sight Set always incorporates design, feel, and performance. FeaturesMachined from quality billet materialsExcellent feel and performanceEase of acquisition.215 Front Sight Height 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.