Originally Posted by juicy
Just note that KJ mags tend to develop leaks very quickly, and because of that, dropping them is probably the worst thing you can do for them; that should be your main concern, rather than plastic feed lips.
Well I don't know about the leaking issue. I own a kjw m9 and I've regularly used the same 3 kjw mags for at least 8 months now, and still have none that leak. Just make sure you don't overfill them.