I have two new Beretta 92 mags - one is factory 17 round and the other is Mec-Gar 18 round. Both were made in Italy and are new in the package. I'd like to trade for "like new" to "very good" Sig 226 magazines (15 round). The 92 mags are 9mm and I am looking for Sig 226 9mm mags in return. Thanks!