| Walther P22 | |
| Origin: |  Germany |
| Type: | Semi-automatic pistol |
| Is Ranged: | yes |
| Manufacturer: | Carl Walther GmbH |
| Production Date: | 2002–present |
| Length: | 159mm |
| Part Length: | 87mm (P22) 127mm (P22 Target)---> |
| Length: | 159 mm |
| Part Length: | 87 mm |
| Width: | 29 mm |
| Height: | 114 mm |
| Cartridge: | .22 Long Rifle |
| Caliber: | 5.59 mm |
| Action: | Blowback |
| Velocity: | 290 m/s |
| Range: | 30-50 meters |
| Feed: | 10-round detachable box magazine |
| Sights: | Adjustable open sights |
The Walther P22 is a semi-automatic pistol chambered for .22 Long Rifle (5.59 mm Caliber) rimfire ammunition. Manufactured by Carl Walther GmbH Sportwaffen, it was introduced in 2002 and has become very popular among shooting sports. It is distributed by the American gun company Walther America, associated with Smith & Wesson.
The P22 may be fired double action at about 11lbf, and operates as a single action with slightly more than 4lbf.[1] The P22 operates by blowback energy from the motion of the cartridge case as it is pushed to the rear by expanding gas created by the ignition of the propellant charge. The action will not open until the projectile has left the barrel and the pressures have dropped to safe levels. The gun will not cycle efficiently unless high velocity .22 (5.59 mm) rounds are used.
The Walther P22 was one of two semi-automatic weapons used in the 2007 Virginia Tech shooting,[2] with the other being a Glock 19. The P22 was also the selected weapon used in the 2008 Kauhajoki school shooting.[3]
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