CZ 527 / 557 Trigger Spring Diablo Bullet provides explosive performance on

Bullet provides explosive performance on impact

At Hornady®

(does not include chokes)

In the fall of 2018

10-round and 12 round capacity

CZ 527 / 557 Trigger Spring Diablo Bullet provides explosive performance onYoDave's CZ 557 527 Trigger spring Reduce the trigger pull to 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