CZ SST - trigger spring (CZ 453, 527 and 550)
CZ 453, 527, 550
Upgraded Spring for the CZ Single Set Trigger 'SST' (1 lb to 2.5 lbs)
This kit includes 3 trigger pull springs which are all the same and will deliver a safe and repeatable pull weight with an adjustable range from 1lb to 2.5lbs* when installed correctly**. These springs replace your original trigger pull spring on the CZ single set trigger. The set trigger spring doesn't require replacement and the installation of our replacement trigger spring doesn't affect its function. Good quality replacement trigger springs are uncommon for these rifles, our replacement is a low cost alternative to purchasing an expensive aftermarket trigger. Further improvements are possible by polishing the internal trigger components with varying grits of rouge compounds on a sisal wheel / buff. Once the new trigger spring has been installed, the trigger can be adjusted to suit the shooter's preference with a number of guides available online on how to do this (guide #1 and guide #2).
* Results may vary slightly between individual rifles and trigger pull gauges. Our pull weight is measured using an RCBS gauge.
** We supply replacement springs only. If unsure on installation, we highly recommend having a qualified and competent gunsmith do the job. Slight variations between different rifles may result in an unsafe trigger when fitting these springs. Always ensure the rifle is unloaded before commencing work and test trigger function extensively upon reassembly whilst rifle is unloaded. Slam closing the bolt and dropping the rifle onto the buttpad (both whilst unloaded) is imperative. Adjust the grub screw until a safe trigger is achieved.