I just got one. I have only one magazine. It's awful that you need to spend nearly $100.00 for a magazine. They would sell more if the magazines were cheaper. I haven't shot mine yet.
One other possibility is to do a "G41" build, using the BMP 53AR or 93AR receiver. More than a C93 or V-93 would cost, I'm sure, but different enough that I don't think it could be a clone of the HK-93 A1 or A2. Ultimately, I think that's the path I'll go down if I ever decide a PTR91 isn't enough for me.Ironically the version with the H&K collapsible stock will still be legal after Oct. 1st. The only PITA will be finding magazines which are also expensive.