Yes, it will lighten the trigger pull. The most important thing you need to watch for if this is a defensive weapon is light strikes. You can get too light of a spring and it will not hit the primer hard enough. If you do find that a 16 lbs. Hammer Spring seems to do the trick, it may need replacing earlier than the factory standard. It is the easiest and least expensive way to lighten the trigger pull, but you need to confirm reliability.