ZEV Technologies PRO Flat Face Trigger, Drop-In Kit, For Glock Gen 1-4, 9mm, Black/Red

Apex Tactical Drop-in Action Enhancement Trigger Kit for Glock G17, G19, G19x Gen-5 Pistols - 102156

Cross Armory Enhanced Flat Faced Trigger for Glock Gen 1 to 4 Pistol, Anodized Black/Red - CRGTB

Ghost Complete Trigger Kit for Glock Gen 1 to 5 Pistols - GHO_PROTK

Ghost Inc Glock Gen 1-4 3.3 lb Trigger Connector And Spring Kit - GHO_PIK

Ghost Inc. Rocket, 3.5 lb., Fits Glock, Non Drop In - RTK

CMC Triggers Glock Gen 1-3 G36 .45 Auto/ACP Flat Trigger Kit, Matte Black - 71902

Cross Armory Drop-in Enhanced Flat Faced Trigger for Glock Gen 1 to 4 Pistol, Anodized Black/Red - CRGTDI