I have Gen III factory 15-round Glock 19 mags. I will trade one or more of them straight across for either (a) factory Glock 26 12-round mags or (b) factory 20 or 30-round Ruger Mini Thirty mags. I will also trade one G19 mag for two Ruger BX-25 mags. Not interested in any aftermarket mags. Thanks for looking.