Originally Posted by lurkingknight
dietcoke's got a JG, ares are sometimes finicky with mag choice, as I understand it, a lot of them just fall out because the magwell seems to be just a bit larger than the TM spec ones. I will note though that magpul g36 pmags fit without falling out... I've had a couple guys with ares guns try it.
It's not because of the size of the magwell its because of the angle of the clip that holds it in. I had that problem with a double drum mag on my CA, I filed it to change the angle and it fits fine now.