@bambam's write is spot on. I bought some of these and are excactly as he described them. However none of them would lock up in any of my rifles, or even come close to fitting. From a Wasr to an Arsenal they would not fit. I ended up soaking them in acetone for about 6 hours and scraped the paint off. It came off in strips like a latex house paint. Very thick. Repainted and baked them and now they are functional. Just my experience with the Aims mags.