I found a M-G mag in my boxes of mags I've bought for no really good reason. that I had bought a long time ago, about 20 years ago, that seems to be exactly the same as the factory mag, it does drop on it's own. It's got some rust freckles on it, and I'm going to see if one of the followers I bought a few years ago will fit, as it looks pretty worn down. It does keep the slide back though. I have a bunch of CZ clones and so far, if any mags fit the 75, they are loose or really tight, the only one that's "right" is the one above. I think a trip to a couple of LGS's is in the future. I go by three different ones all the time. Maybe I'll get lucky. I need to control myself, it's going to be a tight month money wise...