Look ma, they work - Magpul Industries AMAG SG9, SIG Sauer P365, 9mm Luger, 17 Round Pistol Magazine

Quality manufactured, they look good, the Springs are kind of tight I can only get 16 rounds in the first trip to the range. The plastic parts that the collars in the floor plate to make it fit my Excel work fine. I'm happy with my purchase. They also cost half as much as Sig magazines. Only downside is I saw them on sale for about 10% less than I paid for mine.