The CM pins are in stock in Europe. I've been buying from IPSC store lately, shipping takes maybe 10 days, and is pretty close to the price in the states. There's instructions on the forums how to make your own also.
https://seboweapons.com/en/cz-75-ts-ts-orange-and-czechmate/444-slide-stop-pin-ts-shadow-2.html?search_query=slide+stop+pin&results=88
Here's the CZ75 pins (ET-130038) in stock:
https://www.ipscstore.com/en/sport-guns-et-parts/6856-eemann-tech-pin-for-cz-75.html
https://www.ericgrauffelonlineshop.com/fr/eemann-tech/1436-eemann-pin-for-cz-75--9384045007530.html
IPSC Store lists parts as on customs docs as sporting goods, if that matters to you.