Asian glock mags

I bought one a while back from somewhere for $10, along with a couple of 17 rounders with a 2 mag case for another $10. Strictly range mags, for sure, however all 3 of them seem to work just fine. I did disassemble them before using them to clean all the excess plastic mold overflow. There was an abundance of it, too. Even though the 17 rounders worked OK, I wasn't really impressed with them. They were cheap in a lot of ways and I've read that the baseplates have a tendancy to crack when dropped. However, the 33 rounder was a different story. It was a different brand from the ATIs and was better quality. Another plus was that it actually held 34 rounds. I used it for a while and then put it up, because it seemed I was wasting a lot of ammo clowning around with it. I wound up taking the +2 extension off of it and using it on one of my G19 mags. That part seems as good as the ones I've bought for as much as the Korean mag cost. For $10 or $12, they aren't bad for range duty. The springs are stiff at first, but they tend to weaken pretty quickly. Never had any problems with them, but it takes a while to clean them up. Without that cleaning, I don't think they would have functioned very well, because there is a ton of excess plastic inside them and it has to be cut out with a razor or exacto knife.