Might provide a bit of additional guidance. From the CZ-USA FAQ:
Q:How do I know which sights to order for my gun?
A: 75/85/SP-01/97B/P-01/P-06/PCR/83
For the 75/85 models, SP-01 models, 97 models, P-01, P-06 and PCR and 83 you must remove the REAR sight and identify the number stamped on the bottom of it. Choose a higher numbered rear sight to raise the point of impact and a lower numbered sight to lower the point of impact.
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Mike