Like many polymer and aluminum magazines, the feed lips are one of the failure points. Well with the Lancer L5AWM one can rest assure that the feed lips on these magazines will hold up much better than it's competition. I recently purchased a few of these for one of my SBRs and they performed flawlessly. I have zero concerns about loading these magazines via traditional method or with a Maglula. It's true the aesthetics of these magazines won't win a beauty contest when compared to PMAGs but is that really a concern here? I think not. I look forward to sending more lead and copper down range with these mags and like all magazines, time will tell, but so far I'm extremely happy with my purchase. Some smoke or opaque black mags are in the horizon. Thanks again DSG Arms!!!!