The issue with the CZ452 is there are multiple different actions screw layouts depending on the model, my 452 22lr and 452 17hmr are completely different and both are different to the CZ455.
I looked into this myself recently as I want a more tactical style stick for my 17hmr.
Boyd's are by far the cheapest option, usually you can buy direct from them but due to USPS not shipping to NZ or Australia due to Covid, so you can't get it shipped.
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