[Kevin]

Where can i find some pre ban 40 cal mags for P99??

 

[sniper350]

I have 2 --(12) round law enforcement only marked orange follower Magazines [ un-used ] - Walther stamped on the floor plate P-99 made by Mecgar these are collector Mags made when the P-99 was first sold.
if interested $50 apiece

 

[freddyboomboom]

The Walther P99 came out after the start of the 1994 Ban On Cosmetic Features.

And it didn't originally come in .40 S&W caliber.

So I highly doubt you will find any "pre-ban" .40 S&W P99 magazines.

However, you will find normal capacity 12 round magazines for the .40 S&W P99 at several vendors, including CDNN.

Google is your friend.