...for a Walther P-99...I have seen it mentioned in these forums, as well as another Walther forum that states a metal guide rod can be ordered from Walther...Walther denies this. I have also heard that the Springfield XD40 guide rod fits the P-99...set me straight, please.
I've got a P99 and I'm not sure that's possible. Anyway, I did order a SS rod for my Sig from this gentleman in Texas: http://bedair.org/P226/Guiderod.html. He'll answer your email, so ask him if it can be done.