If anyone is having a magazine follower stick, I found what could be a solution. As a California resident, I'm limited to 10-round mags. On one of mine, the follower was rough and was sticking at the top of its travel, but the mag is permanently pinned closed by ATI, so I couldn't disassemble it to correct the binding. Although ATI recommends the mag not be lubed, I have a small can of a Caig Labs product used to lubricate plastic sliders and other controls on audio-video gear. I sprayed a quick burst into the mag through the feed lips with the follower held fully down, let it dry for a few minutes, and the sticking seems to have gone away. The Caig Labs stuff is expensive, but I got it as part of a sample "A/V Survival Kit" they make. I'm sure any decent electronics supply store would have something similar.