Arm yourself with the Walther WMP .22 Mag Pistol. It is semiautomatic double action with 15-round capacity. The 4.9-inch steel barrel is threaded, and its polymer frame is equipped with a Picatinny rail. The optic ready serrated slide is made of aluminum. Walther WMP .22 Mag Pistol - Handgun Semiauto Rmfire at Academy Sports