How do I know? I would own one already...
If you insist on the safety instead of the decocker, just get the steel framed Compact instead of the PCR. The only difference is a couple of ounces of weight.
Can you put a slide from a Compact onto a PCR? That would be an interesting frankenCZ. I would think so as I've put my PCR slide on my 75B and my 75B slide on my PCR.