I discovered that the P22 was no longer listed on the PRK "approved handguns" list. I inquired what happened and DOJ said it had been removed. When I asked if it was just "new" guns or "private party" too, here's there response:
In response to your follow-up question, this firearm cannot be transferred through a California Firearm Dealer as a private party transfer or as a dealer sale at this time. There is a question as to whether this weapon is an assault weapon since it has a threaded barrel.
The manufacturer is working to correct this problem.
David A. Witt, Field Representative
Department of Justice