I stumbled upon Winslow Customs, which is customizing CZ 82s:
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I noted the custom-built UGB holster for the customized 82. This surprised me, because I obtained a UGB Regulator this spring for my 75 Compact and like it very much. I wanted to get one for my 83s, but the 83 is not a listed gun.
I checked UGB's website today, and confirmed that neither the 83 or 82 are listed. I e-mailed to ask if they are now making holsters for the 83, and was pleased to hear quickly that they are.
I just placed my order for a Regulator for my 83s, and two matching Side Snap mag pouches.
This is a great, comfortable, convenient, and affordable holster.