Reduce the trigger pull to almost half of what the factory spring will adjust down to, used in conjunction with the sear adjustment screw located on the front of the trigger blade you can now get your trigger pull safely down to under 1 pound, or of course adjust it back up to the 2.5 pound range. Included with the spring is a support block to aid in removing the trigger pivot pin. 

A light dab of grease will hold the spring in place while you reinstall the trigger blade into the trigger housing.