The P22 (the short version not allowed up here) was one of the Handguns of the Year in Gun Tests magazine:
"Walther P22
No. WAP22003 .22 LR, $301
Reviewed: February 2006
This was our first hard look at the 3.4-inch-barrel P22, and we really liked it. We thought it would give up accuracy to a longer-barrel P22, but that was not the case. In fact, we could see no reason at all to own the longer P22, which has the model designation No. WAP22005. Actually, if you have either one of these you can buy the barrel (about $100) for the other and convert it.
Out of the box, we thought the P22-003 was a great-looking little gun, all business. It fit the hand extremely well, but some thought the grip was too small in circumference. We tried the (included) thicker rear-grip insert, and liked it better.
The gun was a uniform matte black, but is also available in two-tone, or in "military" colors, with dark-green frame and black slide. There is also a carbon-fiber-frame version, which is supposed to be even lighter, and there is a suppressed version for those who need it and can legally own it. The frame was polymer, and the slide of aluminum. The grip panels were formed integrally with the frame, and had molded-in dots for traction. The gun had an ambidextrous safety, and could not be fired with the magazine out. The gun also had a clever internal trigger lock that could be activated with a key that came with the package. The magazine release levers were ambidextrous, so the gun was good for lefties. Some of the parts were sheet metal, but seemed to be adequately strong for their intended purpose. The slide serrations worked well. There were extra serrations on the front of the slide for press checking, and there was a chamber-inspection slot.
We could have done without the hook on the front of the trigger guard. The edges of the ejection port were razor sharp, the only sharp corners we found on the gun. We liked the sights, both the windage-adjustable rear and the replaceable plastic front. The sights had white dots and gave an excellent picture. Four different front-sight heights are available for fine tuning bulllet impacts with the P22.
Takedown was very much like that of the old PP. Clear the gun, #### it, and pull the takedown lever just above the front of the trigger guard all the way down. Then pull the slide to the rear, lift it, and ease it off the barrel to the front. The guts of the gun were mounted into an aluminum frame pinned within the polymer frame. Workmanship was excellent inside and out, we thought. Replacing the slide required the use of a small rod that came in the kit. Good luck getting the slide back in place if you lose that rod. We suggest making or securing a replacement before you lose the original.
On the range we had zero problems. We loved the trigger, which broke cleanly at about 4.4 pounds. The double-action pull was just 9 pounds and quite smooth. We tweaked the tiny adjustable rear sight for windage and got on target. No need to change the front sight. We tried several other types of ammunition, and the little Walther liked it all.
This is the sort of little .22 pistol we had in mind when we began looking for affordable plinking guns. The old aluminum-frame, 9-shot PPK/L is, we think, well replaced in today’s market with this very accurate little polymer pistol."