The PPK/S was and is an abomination of parts brought about by the GCA of 68. The PPK didnt meet import specs, so they mated a PP frame to a PPK barrel and slide which added weight and 1 round capicity. Until S&W made the PPK under license here in the states, all imports of the PPK and variants were banned.
The only difference was a longer grip
The PPK was disqualified by GCA 68 due to weight, extra length = extra weight.
The PPK/S differs from the PPK as follows:
Overall height: 104 mm (4.1 in) vs. 100 mm (3.9 in)
Weight: the PPK/S weighs 51 g (1.8 oz) more than the PPK
The PPK/S magazine holds one additional round, in both calibers.
