A freind of mine has a Kel-Tec P11.  It's chambered for 9mm, and is supposed to use one of the S&W 9mm hicap mags, but he doesn't know which one.

So...
1.  What works?  
2.  What about aftermarket?  
3.  What price do reliable mags for this pistol go for?

Thanks for any help!
Tex78

All the smith mags will work.As far as after maarket Mec GAR which was oem for smith kel-tec and a bunch of others.I have had good luck with Triple K

S&W M59 mags work.  The other S&W mags are basically just versions of that, and they work too.  The M669 mags are great with the extension block.  I've had trouble with mags for a 5906.  They wouldn't lock up.  Seems S&W moved the mag catch slightly, or there was just enough difference in the thrid gen SW to prevent it working.  It may be my gun, which is one of the very first P11's to come out (bought it in FL when they frist started up).  I just stick to the older generation M59/669 and have no problems.  

Stick to the older generation mags.  If you buy mags at a show, take the gun and make sure they fit right.

Ross