I collect Walthers. I like the PPK best. I have a TPH in .22lr. I did not buy the PPK/S size .22lr because I have too many guns that shoot .22lr already. I looked at one of them, and it is not stainless like the other models in stainless are. In addition, I much prefer the PPK over the PPK/S. I have both in stainless .380. Someday I may buy the PPK/S .22lr just to make my collection more complete.