You know how that works, right?
I needed a new barrel for my Pre B CZ85 a few years back. The standard length barrels were out of stock. I ordered a threaded barrel, made the mods to the slide to get it to fit/work, fitted the barrel to the slide and took it to the range to sight it in.
Not quite 2 weeks later the standard barrels were back in stock again.
Hey, it looks "cooler" with the threaded barrel anyway.