I've two Sigs. West German P6 and a p239 in 40 S&W. Between the two I much prefer the P6 as it shoots better than my Baretta 92FS. The p239 mags cost me $45 each for 2, in addition to the ones that came with it. The P6 mags when they first came out (the P6 not the mags) if you could find them ran almost the same price. Now a few places sell them for $16.99 (aim surplus) all I have used in my P6 have functioned fine. Sigs rule!!!!!!!!!!. Frank