OK those are great thanks for posting them. And in the proper place Could post it in the General Firearms board also but I think personally this thread is perfect. I'm not a red dot user, but they have been around a while and while your pistol was made in 97 I think the red dot is newer, and I can't see the CZUB installing one unless it's one of the shooting teams old guns (which BTW if that was true you would have people beating a path to your door, but I seriously doubt CZUB Factory had anything to do with mounting it) I DO however think either CZCustom or CZ-USA more than likely did the work.
Here's where the confusion may come in, CZCustom is owned by Angus Hobdell who is not only a Master Gunsmith, but also the head of CZ-USA's shooting team. But CZCustom is NOT owned by CZUB nor CZ-USA, they are just really good business partners.
Which leads us to CZ-USA itself. They are not Manufactureres they are the wholly owned subsidiary of CZUB as the sole distribution agents for the US Market and probably other places. Never asked, don't care as long as they never leave here. They also have in-house gunsmiths to do repair work and make additions or customize a customers weapon(s) before they get shipped to the Customer.
Not to be insulting, and I think it's a waste of time to take a picture of the paperwork, would you please tell us/me what the paper work reads/says and if it actually says the red dot was installed at the CZUB Factory at the same time as the pistol was made and assembled, or by CZ-USA's people here in the states. The part about a limited run may be that is was built by CZCustom. But, CZ has built pistols for RSR and others for various reasons so the paper work really would help, and I wish I had asked for it when I asked for the pictures. (Make a copy of it, store the original safely, use a marks-a-lot on anything that's private, more coming known as redacting.) The date is going to be a 2 digit number in a circle directly next to the ejector port 00 would mean 2000, 97 would mean 1997 and so on. And no I am not trying to insult you or talk down to you, just trying to be very clear. Sometimes I come up short in tackfull wording. They may well even be a date on the red dot sight itself you can see with out taking the red dot off, Which I advise against. Part of what's making me have to make a lot of guesses is because the frame holding the sight, they bolted to the slide it covering up the Model name of the pistol, if there is one on the slide since it's a limited addition, and why it was made.
What ever you have, I would say you have a VERY nice piece of iron there and take good care of it. I don't know how much you paid for it and it's none of my business unless you want bragging rights about getting a crazy deal on a great pistol.
Actually after all this yammering I just realised that you could as Stuart on the CZCustom Q&A Board, He may know more about the entire thing. Give everyone a day or so to catch up with all the posts here and see what any others have to say. And if for some reason you want to sell it I may be able to scrape up say 300 or 400 hundred just to help you out and take it off your hands as it were