I purchased 3 Smith 16 round mags for my P99. They don't seem to be the same quality as the Walther 15 rounders. I have not function tested them yet. Any feed back on their reliability would be appreciated.
They are of the same workmanship as the older P99 magazines. The newer P99 mags have the ribs built into the body now. Which I think is a better design. It prevents the bowing out effect that the older magazines experience.
The metal is also cut differently in the area in front of the feed lips, but they're $30 instead of $40. I have a couple but I'll probably just buy the p99 mags from now on just because it gives me the warm and fuzzies.