I bought both, and although I've never been a fan of plastic mags (I went through the old thermold CF mag problem years ago in the army, they broke if you looked at them wrong), I really like the IMI mags over the C Products mags. I recently picked up both, and they do both work quite well, but the IMI mags tend to work somewhat better and they don't pinch or cut your fingers like the C Products does when you're loading them. The IMI also seem to load and fall free a little better than the C Products do. Again, both work pretty much flawlessly, but I'd take the IMI over the C Products, even in an overseas tasking scenario. Never thought I'd see that.