Brownells RSA-108 19LB PRO-SPRING KIT FOR OLD MODEL & OLD ARMY 95307

An excellent base from which to build a beautiful, smooth and reliably functioning gun. Includes a redesigned trigger spring and a reduced power hammer spring to give controlled trigger pull. Also includes extra power, base pin latch spring. Factory hammer spring is 23 lb. Kit contains 19 lb. hammer spring, 25% reduced power trigger spring, and increased power, base pin latch spring (use an old model only).