I can't say for sure about the PCR but I do have a P-01 and a shadow 1(SP-01 Shadow).
I have replaced the sights on both and can say for sure the P-01 has the 2mm dovetail and the shadow has a 1.5mm
Below is an email response I got from David at CGW about the 2mm sight I ordered not working on the shadow.
The Shadow uses a different height on the dovetail. Most CZ's use a 2 mm depth, the Shadow uses a 1.5 mm. Most folks keep the stock F/O front sight on their Shadows, so we are not carrying the 1.5 mm depth.
Check with Dawson Precision for the 1.5 mm depth front sight.
David