The P22 is a semi-automatic pistol manufactured by Carl Walther GmbH Sportwaffen.
The Walther P22, a .22 LR caliber handgun, features relatively mild recoil when fired, making it well suited for introducing and training newcomers to handguns without introducing any fear from recoil. The P22 is regarded by many firearms enthusiasts as being a modestly priced "plinker" suitable for handgun training, recreational, and other general rimfire use. There are a wide range of accessories, including fiber-optic sights, a laser sight that attaches to a rail under the dust guard area in front of the trigger guard, and a frame-mounted scope attachment.
On the exterior, it resembles the Walther P99, but it is somewhat smaller (75% of the P99's size) and its action chambers the rimfire .22 LR cartridge. The most noticeable exterior difference is the P22's slide mounted, thumb operated, ambidextrous safety and its external hammer. The P22 features a cast polymer grip-frame. Its slide and serial numbered frame receiver inserts are made from MIM (Metal Injection Molding) cast zinc alloy, its barrel consists of a rifled steel insert within a steel barrel sleeve, and its internal lockwork and fire-control parts are a combination of MIM cast steel and steel stampings.