Springs for the JARD CZ-457 Trigger Replacement springs to change pull weight on the JARD CZ-457 Trigger. These are the springs shown in the JARD CZ-457 Trigger instruction manual. You can swap in a stronger or a lighter spring to change the pull weight...

YoDave CZ-457 Trigger Spring Kit  With this kit, you can reduce the CZ-457 trigger pull to approximately 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...