Some popular upgrades to cure reliability issues.
Wolff extra power (+25%) extractor spring for all 75 B Series models
New design trigger pin by CZ Custom
CZ Custom spring and follower kit for increased capacity
Reduced weight firing pin spring for CZ75 series.
Extended firing pin for CZ Shadow and Tactical Sport.
+10% extra power magazine spring for 17 / 19 round Mec Gar magazines for SP-01 Shadow and Shadow 2