I had a p22 a while back. Fun little piece. Lots of accessories for it, scope rails, suppressors, both real and fake, etc. Just make sure you get the right tpi adaptor for the barrel. Real or not it adds a nice balance to the pistol for target shooting. The only problem is it liked to unscrew itself after a few mags. The gun shot well, but as it got dirty I'd have to tap the back of the slide to get the round to seat all the way in the chamber. If you get the scope rail, you have to take it off anytime you want to disassemble the gun for cleaning. It goes back to zero when remounted though so no need to resight everytime.
Overall a good gun for the money that won't break the bank/