Diproducts Almost 40% lighter pull than the factory components for a much better feel and easer to adjust at lower trigger pull weights. Detent ball retention pin hole to help hold the ball and spring in place for a much easier installation. The adjustable piece allows you to remove virtually 100% of the "take-up" in the trigger and reduce that long, gritty, heavy, factory trigger pull for a crisp, clean break with the wide trigger shoe for a target rifle type feel, as it should have been produced in the first place. Adjustable engagement to improve feel to help you achieve accurate shot placement. Drop-in installation.