A short time ago I posted a thread letting people know about MidwayUSA's clearance sale on OD Tapco AK mags. I picked up some and I feel it's my responsibility to let you all know about a potential problem and a fix. If your mags came in a heat sealed plastic bag with a color insert (some of mine did) look at the little hole in the follower. You should be able to see the spring through the hole (just a short silver line). If not - the mag may have the wrong springs installed by the factory. The mags that came in the plastic bag with the cardboard hang tag stapled on top did not have this problem. I contacted Tapco and they said that they had a batch of AK mags go out with AR magazine springs accidentally installed. They're too short and too narrow for these mags and will cause problems. If you open the mag it's obvious. The spring doesn't fill the entire follower or cover the entire base insert. Wrong spring is on the right. If you have this issue, contact Tapco and they should send you the correct springs free of charge. They are aware of the problem and admitted fault without hesitation. It looks like MidwayUSA was getting rid of some old stock (hence the good deal!) and it included some of these older mags from the batch that was sent out with the incorrect springs from the factory. Anyone need some AR magazine springs?