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Thank you all, I just talked to CZ, as advised, and was told that their older model took the 14 rnd mag and the newer Omega takes this 15 rnd mag - same as the CZ 75 Compact. thank you all again

Did you buy yours used or new? I was the one that told you a 14round magazine, I was just looking at one of these in the FFL at the end of last month when I picked up my AK and the CZP01 I looked at had a factory magazine that was 14rds.
CZ's website lists this as having a 14rd magazine, I almost bought this CZ but id already spent to much on my rifle and accessories.
Not trying to cause confusion, just giving you the info from my experience
https://cz-usa.com/product/cz-p-01-%CF%89-convertible-omega/
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Mecgar 14rd magazine here
midwayusa.com/product/1006232775
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This magazine fits as the original : budsgunshop.com/product_info.php/products_id/714020498/mec-gar+mag+cz75+cmpct+9+mm+15rd+afc ------------- Details here : https://gregcotellc.com/cart/cz-factory-mecgar-actmag-c-173/cz-75-compact-cz-pcr-cz-p01-cz-p06-15-rd-9mm-mgczcomp15afc-p-2059.html