Zev Technologies; iron sight sets are an inexpensive addition that a Glock owner can make to their firearm. The top 3 complaints from Glock owners are the trigger, grip, and sights. Iron sight sets have the highest resolution and greatest ease of acquisition. They also boast higher visibility will allow you to keep your sights on target. The Zev Technologies Sight set will improve your shots on target dramatically over a factory Glock; sight set. Quality sight sets will allow you enough room to keep your eyes on target during transitions.