Although I had the foresight to obtain several extra mags for myPA 63 and SMC 380, I too found the Walther PP or PPK ( for the smaller SMC) mags will work, however you would need the older style without the rib. Good luck finding originals as they are as pricey a FEG's. I would not suggest Triple K as their quality, in my experience, has been quite poor with cheap plastic followers and floor plates that quickly break and tubes that sometimes do not fit.