Thread: Can someone with a CZ527 please measure their rear pillar length for me...

Could totally depend on the stock. I have a CZ527 composite stock and the dimension required for the rear pillar was different to the factory roll pin / rear pillar in the original wooden stock.
When I made the pillars, I started a bit long and ground the length down until the action side of the pillar was .25mm proud. The bedding job fixed the rest of it up.

.25mm too long was selected as everything just worked - magazine fitted with a satisfying click and had no movement, and it fed well.