Hey guys my friend's dboys rk-10 is not shooting. Well more like every couple of shots 3 or so bbs shoot out and not very far. Its like every other shot a bb is getting jammed. Ive cleaned his barrel, put in high quality bbs and put the hop up all the way down and it still does the same thing. Ive also tried using a different mag to see if it was a feeding problem, but its not. Ive also fully charged his 9.6v battery so its not a battery problem either. I think its a hop up problem that is jamming the bbs but maybe not. If yall have any suggestions on how to fix it that would be great.