Would go with the Mec-gar magazines instead. This company has an excellent track record and makes magazines for quite a few of the gun companies for their makes and models. Ajax Grips and www.cdnnsports.com should have them in stock. Midway USA or www.jgsales.com could be other sources for both calibers for Mec-gars. I do have Pro mags and they do work for my Rugers. Use them for shooting competitions with. I just trust Mec-gar's quality a little more for defense.