Apex Tactical AEK polymer Action Enhancement Trigger for Glock Gen 3/4. Drop-in upgrade - smoother take-up, crisper reset vs OEM. Blue trigger shoe. Fitment Glock 17 Glock 19 Glock 22 Glock 23 Glock 26 Glock 27 Glock 34 Glock 35 Specifications Drop-in install - no fitting required GLOCK is a federally registered trademark of Glock, Inc. and is one of many trademarks owned by Glock, Inc. or 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 aftermarket Glock-compatible pistol components. For genuine Glock, Inc. and Glock Ges.m.b.H products, visit https://us.glock.com .