CZ 457 Series Trigger weight reduction Spring 8oz pul and 12oz. Two springs incl

CZ 457 Series Rifles, COMPETITION Trigger Pull Reducer Spring 8oz+, ALL CALIBERS

CZ 457 Series Rifle, Trigger Pull Reducer Spring Set, 8oz & 12oz+, All Calibers

CZ 457 Magazine Housing Screws, Stainless Steel, Replacement Set.

Cz 457 Reduced Trigger Spring

CZ 457 Series Rifles, EXTRA POWER FIRING PIN SPRING, ALL calibers

CZ 457 Series Rifles, Trigger Pull Reducer Spring 12oz+

CZ USA 457 Series Aftermarket Trigger Pull Spring 12 oz