I have had a CZ97B (RSR DuoTone
) for several years and shot it quite a bit. It came with one mag and I bought a spare Mec-Gar mag at the same time and I've never had a hiccup with either of them. A few years back, I bought four ProMags for the 97 but moved shortly thereafter and kinda lost them in the shuffle. This month, I dug them out of a box and put them in my workshop for later. Tonight, I got around to trying them in the pistol...These things are absolute goat poop! The fit is awful -- there's a good 1/4" gap between the bottom of the magazine well and the floorplate of the mag and they don't fit snugly in the well. I threw them all away. I don't remember what I paid for them, but I ain't gonna bet my life on some piece of junk like that, so I'll just consider the money wasted. I just ordered four more Mec-Gar mags. Lesson learned.