The Match Trigger Kit will adjust the trigger pull on single action (SA) to about 4 lbs. and the double action (DA) pull to roughly 7.5 lbs. All the while providing an overall smoother trigger with a better trigger reset. Each kit comes with all the parts need for the "match" conversion for your USP model and USP variants. Heckler & Koch Heckler Koch USP Match Trigger Kit 216169R