If you are the owner of an ASG Universal Service Weapon (USW) you'll know standard capacity magazines sometimes just aren't enough, you need more!, we completely understand. So why would we be a stockist of the pistol, if we wasn't going to have your back and stock the 50 round gas magazine? We wouldn't do that to you. We might sell out but all the while we stock ASG's USW A1 we are going to have these great mags also.