I have a 9mm 75 Shadow with the HAJO rear sight that has had some problems with the pivot pin breaking. CZC has replaced the pins and the springs with great customer service.
It happened again a few days ago. The pin broke but part of the pin stayed in place so nothing "flew apart". It just lost the zero adjustment and was shooting way high.
I replaced the pin and took it back out to the range and found it no longer has the "click adjustments". It adjust fine but changes/drifts up with every shot. I haven't taken it back apart again, but need to tomorrow.
What is the likely part/cause/fix to keep the sight from drifting off zero when shooting. Match Saturday. Is there a temp fix to lock it in place until I can get the part or whatever is missing replaced? Sure do need this gun to run Saturday.
