My grandpa has one of these rifles and the magazines are constantly giving him problems, he has two right now and both of them are crap. The follower and spring aren't the greatest and they'll frequently eject all of the rounds out of the magazine. Has anyone else experienced this problem? If so, what did you do to take care of it? I looked for aftermarket mags and didn't find any and wanted to see what people thought on here before trying our luck with new factory mags. I think the rifle is around 3 or 4 years old. Thanks