Brownells Gm-455 For Colt Government Pro-Springs? For Action Tuning
Brownells Gm-455 For Colt Government Pro-Springs? For Action Tuning, GM-455 for the Colt Government Model .380 - Includes a 12 lb., extra power recoil spring with an extra power firing pin spring to improve functioning, plus a reduced power, 20 lb. main spring (hammer spring) to lighten trigger pull, and a factory standard 23 lb. hammer spring. Mfg: Brownells