You can get is as a complete pistol, or you a conversion kit for any of the CZ75 flavors.
I've got the Kadet Kit installed on my CZ75B. I think its better to buy the 9MM 75B then add the .22 conversion. The Kadet Kit is great and equals my Ruger MK II 5.5 inch bull barrel in accuracy. Yes, its that good and works on both my 75B and PCR.