The M&P .22 is still a good choice if you can get .22LR ammo! Same size and feel of the .9mm,.40 and .45 full size of corse. I have the M&P .22 and the M&P .45 very happy with how they both fit and feel in my hand. It looks like the m&P .22 is made with the midsize grip panel and is not changeable.. But still a very good partner to the other full sized M&P line as it's a full sized gun itself.. Don't think you can go wrong with it. Got mine last year 2012 in July for $329 out the door.. George