oh, and another thing, don't be seduced by these low price hi-cap mags, a fatal mistake.
i fortunately found six leftover 226 mags at the dealer where i bought mine, the were originals, even had the jpsauer stamp on them, still in the package brand new! paid $60 each, but worth it. only other mags i would recommend would be mec-gar, and i do believe that they may make mag's FOR sig.
no need to buy such a reliable weapon and experience a malfunction due to the mag, best wishes.................S