Well ... couldn't help myself. Traded in the Walther WMP today for one of these M&P .22 Mag pistols. The WMP was totally reliable, but ridiculously huge and nearly impossible to find a holster to fit it at all (I've never been much of a fan of a pistol you can't carry, both as a matter of principle and practicality), and while the 15-round capacity of the WMP wasn't bad ... well, now there's at least two models of pistols floating around that sport 30-round mag capacity right outta the box. It was plenty accurate, had a great trigger, and again, it was very, very reliable ... but frankly, it was boring and utterly impractical.
I very, verrrrrry seriously considered getting another PMR30 to replace the one that Wifey more or less stole from me (AKA her saying "I like this gun" followed soon after by her saying "I'm claiming this one" and me rolling my eyes

), but I've always seen the PMR30 as a project gun, even when new. I know there's folks out there lucky enough to get one that somehow just plain works, but more often than not, at the very least they tend to be ammo-picky and VERY particular about how the magazines are loaded (the "nest" style loaders seem to help tremendously, not to mention they're SUPER easy to use). But then there's all this other concern about the buffer thing wearing out in short order and having to keep a few on hand to replace them often, replacing the magazine catch so the mag sits up higher and feeds better, replacing the polymer feed ramp with a metal one because they wear out or even MELT, and so on ... and even then, no guarantees that the thing will work and stay working for any length of time. Given, like like cheap guns and I like fixing up stuff and making it work, but I prefer that I fix things and have them STAY fixed rather than constantly having to repair them. Definitely fun to shoot when it DOES work, because that trigger is just AWESOME, but just ... too much of an ongoing hassle.
The M&P, however, doesn't use any plastic buffer thingies that need periodic replacement. And supposedly, the Tempo barrel system allows it to function reliably with a wider range of bullet weights and loads, which is nice because I have a pile of .22 WMR ammo I'm stacked up over the years in allllllllll kinds of flavors. The M&P's got a very slim overall form like the PMR30, and the magazines even look/feel the same (the M&P mags are slightly wider, though, and won't fit in my "nest" style loader

), but overall has a more solid feel to it, and the grip angle is MUCH more comfortable to me - the PMR30 has a funky almost-vertical angle like my Chinese Tokarev clone, which isn't terrible but doesn't feel quite as "at home" in my hands as the M&P's angle. Smith & Wesson seems to have toned down their stupid-aggressive grip texture a bit with their newer models, so rather than being like 60-grit sandpaper, it's more like 220 grit - still probably not something I'd feel good having rub against my side or belly when carried IWB, and would probably chew up shirt material, but at least it's not something that rips your skin when you grip/shoot the thing like their initial M&P M2.0 models had. As a workaround, I might sacrifice a section of old bike inner tube later and stretch it over the grip if Talon Grips doesn't get around to making rubberized stick-on grips for the .22 Mag and 5.7 M&P's (they have the exact same grip shape/size, near as I can tell).
Anyway. As usual, just need to find the time to get my butt to the range to test this thing out and see if it's worth the hype ... and the price, being that it was a tad more expensive when new than the WMP (like around $600). Most reports I've seen from folks say it's pretty reliable, although there are a few here and there that say it can be picky at times (a lot of them are running a red dot, which always seems to throw a monkey wrench into the works on semi-auto rimfire pistols), and even the manual admits that reliability can suffer if you run the gun hot by firing a lot of rounds through it. (It's a gas-operated system, like the Walther CCP, which also gets hot when fired a lot, so it's kinda inherent to the design.) Probably a good thing, though, because .22 WMR ain't as cheap as .22 LR, so having to pause and let it cool down a few minutes should help keep me from burning up all my ammo so quickly.
