I dont have a P220, but I do have a P226 Elite in 9mm.
I got the P226 .22lr conversion kit shortly after getting my Sig. In short, I love it. Feeds everything I put in it (Fed Bulk, Win Bulk, Rem Bulk, CCI Mini's). And the accuracy is pretty good.
There are 3 downsides however.
1. The sights are not compatible with aftermarket sights.
2. Extra magazines can be pricey if you dont look around hard enough.
3. The slide does not lock back after the last round.
Overall I love it though. Its great for practicing your grip and trigger control. And it offers plenty of fun at a cheap cost.
I found one pretty cheap at ******tactical.com for around $265 shipped. If you buy it there just dont forget to use the discount code "stimulus".
G34 OD, G21SF, G17, Advantage Arms LE 17-22 Kit
Sig P226 Elite, Sig P226 .22lr Conv. Kit, Sig 522 Classic
SilencerCo SS 22Sparrow & SilencerCo 9mm Osprey
Hornady LnL AP, 9mm & 45ACP
Last edited by Flipz; 06-18-2010 at 16:09..