This item cannot be used on the following calibers:.223/5.56; 7.62x51; 308; 7.62x39; 5.45x39, as these are prohibited under Amazon policy. Magazine Not Included!! New Heavy Duty Design For use with the factory Walther P22 Magazines This will not work with Pro Mag magazines Proudly made in the U.S.A. by military veterans No More Sore Fingers or thumbs This loader has the extra-large, thicker finger grips, for easier loading. No more sore fingers from grabbing the tiny little slide grip that is on the factory magazine Simply place it over the magazine and press down with booth fingers. The wider finger grips insure a non-jamming easy sliding loading operation. Pew Pew Peweter (Gun Metal Grey) in Color, so it will Match The Magazine!! Satisfaction Guaranteed