The 103106 model from Apex Tactical Specialties is a highly advanced iteration of drop-in parts. Known as the Apex J-Frame Duty/Carry Kit, it renders installation a straightforward process. One of its best features is the significant reduction it offers to the trigger pull weight of your J-Frame Smith & Wesson Revolver. With this kit, the pull weight reduces by around 3.0 lbs. compared to the factory specifications.