I have 10 mm in full size , poly frame new and a full size 45 acp steel wonder finish. THe steel weapon has a frame mounting same as the poly frame for lights etc. I have searched for mags for these pistols. But I am not sure what mags fit. THe 10 mm mags do not fit into the 45 acp frame at all. but hennings as well as other stores do not seem to differentiate between the frames for mags.