The Zev Technologies Professional Fulcrum Trigger Bar is one of the most important upgrades a user can make to their Glock; . ZEV's Fulcrum is the best on the market and currently holds several world records. The Professional Trigger bar assembly greatly enhances the feel of trigger pull through the built in adjustments. One of the first things a Glock; owner should consider is upgrading the stock trigger. The Fulcrum PRO Trigger Bar Assembly only requires one tool (a standard 3/32nd punch), and 15 minutes of your time. With ZEV's Fulcrum Trigger with Trigger Bar you will immediately notice differences in your gun's performance after installation. The trigger face is flatter and the trigger safety is three times wider than a stock trigger; this is ideal for quickly placing your finger in the optimal firing position. This will help build proper muscle memory for improved consistency and accuracy. Because of ZEV's proprietary trigger bar refinements the trigger operates smoothly through the entire length of pull. The pre-travel and over-travel are non-adjustable and pre set for a shorter pull and faster reset. Trigger adjustments will give the benefit of shorter take up, post break travel and will result in a shorter reset. Features Flatter trigger face Proprietary trigger bar refinements Pre set (non-adjustable) for shorter pull and faster reset