I recently received two Walther pistols, a W German (no import mark) made 1968 without import mark and a 1972 PPK/s, Interarms, in .22 LR. Both pistols are like new with the .22 in original box but with what I believe to be aftermarket magazines. I am trying to find out if currently made Walther magazines are available to fit this pistol. Also, I am looking for a source for the finger grip on the magazine base to replace a broken one on another of my PPK’s. Any help will be appreciated..