I originally bought the tacamo mag fed conversion kit for my alpha black and everything was working perfectly. When a bunch of us decided to go to a local field and play after the first match i realized that my mag fed wasnt such a great idea in these quick skirmishes, so i slapped on my hopper adapter and went to work.This is when the problem started. Once i got home and cleaned up the gun and all i put back on the mag well but whenever i put in the mag feed cover (the part with the ball stop) my gun wont recycle. I've ordered brand new ball stops for it but i get the same problem. Has anyone else had this problem or have any ideas as to what I could do to remedy the problem.