Which is ridiculous considering what good AR magazines cost and the moderate quality of these ones. These things wear out somewhere after 1000-2000 rounds have been run through them. That's why I'm in here, I've down to two working mags with 2 worn out ones. They work great for the first while until the steel gets worn down on the front of the lips. Then the rounds start either coming out standing up and jamming into the top of the chamber, or refusing to come out at all. Having the bolt slam into the round only for it to refuse to budge seems like a recipe for trouble too. Great mags, but don't expect them to last forever.
Pro tip: Buy the clear ones, then paint them. I tape up the top around the square part and put a strip of tape down the back to make a window to see the round count. I use Krylon, it seems to stand up to abuse well. They look way better than the smoke ones.
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