I know, it's not an original WWII, but it works well and is a hoot to shoot. My problem is magazines. I have a couple of original 10 rd mags that came with the gun, that seem to work better than the 30 rd cap aftermarket mags I've also been using. The aftermarket mags worked well....once.. After that, I start getting an ejection jam about every 4-5 round fired. Is the problem with the mags or something else? If the mags, is there anything I can do to make them more reliable. Thanks in advance for the advice.