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|Place of origin||Germany|
|Manufacturer||Carl Walther GmbH|
|Cartridge||.22 LR (5.6 mm)|
|Feed system||10-round detachable box magazine|
|Sights||Adjustable open sights|
The P22 may be fired double action at about 11 pounds-force (49 N), and operates as a single action with slightly more than 4 pounds-force (18 N). The P22 operates by blowback where pressure generated by a firing cartridge is countered by a combination of the inertial weight of the slide assembly and the force of the recoil spring. 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 (5.6 mm) rounds are used.
A Walther P22 was the weapon used in the 2008 Kauhajoki school shooting.
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