My 3 mags seem to function at 25 rounds after a bit of playing around with graphite, and maybe the two springs were binding, and disassembling and reassembly helped out, I am not sure. I mentioned that flexing of the mag like in Rhino's picture, it was a little worrisome, like filling a ballon right to the edge before it pops, but like e said, popped right back and inserted in the mag well fine. I still prefer the steel 20 round, mainly it's a bit easier to load, and I can drop to a lower prone. Just my opinion. I'll keep the MLI mags for when the zombies rise. Overall, the biggest improvemt ont Scar is the Giesselle trigger, but that's for another thread.I noticed the mag flex also. I also noticed, on the ones I tested this weekend, that they didn't want to seat right with 28 loaded (probably due to the pressure on the springs). I didn't see the same problems in the second order i received (which came in after I had left). And they are hard to load. However, I ran 25 rounds through, as well as dropped and tossed around and had no ejections on dropped and tossing, no ftf's or fte's when firing. Mags seem fine if a little hard to load. For what they are and were (a reported guarantee when no other mags were available, as well as a 25 round durable mag). Popular no. Nice to own something slightly different, sure.