22 WMR semi-automatic pistols. This is due in part to the engineering ... it's lighter than the Smith & Wesson (22 ozs.) and the Walther (28 ozs.). And with a suggested retail price of $495 ...

22 WMR, plus its long, rimmed design, building a reliable semi-automatic pistol chambered for the round is an engineering challenge. Walther decided to tackle the concept, and the WMP is built to ...