Try asking this same question on the CZ Forum
http://www.czforumsite.info/
I've had a 97B and they are huge. Extremely accurate, but huge. They don't weigh as much as a Springfield Armory TRP Operator with Bull Barrel. I recall that they won't fit in "the box" for IPSC. But since they are an all steel gun they can have a rail TIG/MIG welded to the grip frame. There is a member at the CZ Forum screen name "Schmeky" who has a 97B Project going on and has done some pretty cool work. The other source you might try is Miossi Gun Works
http://www.miossigunworks.com/index.html He does custom work on CZs.