There are 2, 22 WMRF pistols currently in production. At least that is all I know of.
First is the High Standard built AMT Automag II
$ 695, Stainless steel construction, 6" barrel, Factory Pachmayr grips, 9 shot magazine.
Had alot of feed/ejection problems when I first got mine, sent it back a couple times. Finally after about 500 rounds, it seemed to get broken in, and became much more reliable, and less picky about the ammo I fed it.
Very nice looking piece. Had to order mine from thre factory. Had a very long wait time 3 months. Was about to demand my money back when I finally got the pistol. So watch out for that.
After all the problems, I am now pretty happy with the pistol.
Not a target shooter by any means, but , accuracy is okay.
Here's a pic.
The other is made by Excel Arms, MP-22
About $ 400
Stainless Steel, 8" barrel (yes, it's a handful )
9 shot magazine.
Very happy with it. Eats any ammo I feed it without complaint, After about 200 rounds, I haven't had any failures to eject or feed.
I bought mine from the vice president of the company. It was his personal piece that he took to shows as a demonstrator. I don't know if they all come with it, but, he gave me 2 extra mags with mine, for a total of 3 magazines!
You can also purchase an extra 17 HMR barrel.
Accuracy was excellent. I have now put a Leupold VX-III scope on it and it's a varmint's worst nightmare!!
Here's a pic