Hey guys. Buddy of mine has given me a couple of these to play around with and possibly buy. I was shooting out back and one of them went bat chit crazy. When you load the mag, insert and fire, the gun empties the entire mag with one pull of the trigger. Damn dangerous. Something is obviously broke or worn out. I do not know much about this particular gun and i know there are a good many colt guys here. Anyone have a bit of guidance on fixing this? Thanks