The M&P22 is a popular addition to the M&P line of semi-auto pistols. It was designed by Smith & Wesson/Walther to be a true and dedicated .22LR. The M&P22 Pistol combines the look, feel and familiar operating features of the trusted M&P series of centerfire pistols. The M&P22 is ideally suited for training or simple shooting enjoyment with the popular and inexpensive .22LR cartridge.
If you able to get your hands on 22lr and looking for a way to offset the cost of the higher caliber handguns, then you wont be disappointed in this firearm. Very light almost too light being a 22 and is a comfortable shooter. Zero recoil so it really gives you a chance to work on your mechanics. I start off with it to warm up to my 9mm, and then by the time I go back to the M&P 22 at the end of my range time, I am knocking out quarters with the right ammo. Like most 22s .. it gets a little finicky with ammo. But easy to break down and clean to avert most of those headaches For home defense Not something I am qualified to speak to .. but can say that if I was are going that route, I would load two mags and buy the very best 22lr ammo I could buy.