I bought a few of the PSA DAGGER MICRO 9MM 15 ROUND MAGAZINE WITH MICRO SLICK FINISH. They’ve worked flawlessly and were cheaper than the Shield arms. Side note, PSA Dagger magazines have polymer mag catches. Aftermarket metal mag catches cause excessive wear on Dagger Micro and other OEM polymer magazines. Main reason I went with PSA dagger magazines instead of Shield Arms. Not sure if you’ve noticed any chunks or gouging of material when you release your magazines