ZEV has released their brand new PRO connector. The pro connector was engineered to provide more consistent, positive reset and a reduction in trigger pull weight without sacrificing the reliability and safety of the pistol. The PRO connector will increase performance and will deliver a 15% reduction in trigger pull weight from a stock Glock trigger. The PRO connector is ready to drop in, no fitting or polishing required. It is compatible with all Glocks Gen 1-5 except for the G42 and G43.