The Apex Action Enhancement Trigger Kit is a drop-in trigger upgrade for Glock Gen 3 and Gen 4 pistols. Direct replacement for the factory trigger group - no gunsmithing, no fitting, no compromise on safety values. The kit pairs the Apex Action Enhancement Trigger with a Gen 3 factory trigger bar, Apex Ultimate Safety Plunger, and Apex Performance Connector. Together they reduce trigger pull weight by approximately 1 lb, smooth out the uptake, and shorten both overall travel and reset distance - measurable improvements you'll feel from the first dry-fire. Kit contents: Apex Action Enhancement Trigger Gen 3 factory trigger bar (paired by Apex) Apex Ultimate Safety Plunger Apex Performance Connector Fits: Glock 17, 19, 22, 23, 24, 26, 27, 31, 32, 33, 34, 35 (Gen 3 and Gen 4). Does not fit Gen 5 - the Gen 5 trigger bar and ejector are different. Use notes: Install per Apex documentation; the trigger bar and connector must be swapped together for proper geometry Confirm the safety plunger seats fully before reassembly - partial seating prevents full lockup Dry-fire 50-100 cycles after install to break in the connector and seat the spring before live fire Function-check on an empty pistol before carrying or competition use. Trigger weight and reset will continue to smooth out across the first 500 rounds as the surfaces wear in. DISCLAIMER: "GLOCK" is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither 3CR Tactical nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of "GLOCK" on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.