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.Features Machined from quality billet materials Excellent feel and performance Ease of acquisition .215 Front Sight Height