Thanks very much everybody, I really appreciate all the help. I am going to get another carbine to shoot, as I don't think this one has been shot. The gun including the inside of the barrel was still in cosmolineicon when I got it. When I came home on emergency leave I didn't have time to even look at it, I figured as soon as I got home I would check it out, but I ended up volunteering for another tour, and then I volunteered to teach national guard units that are deploying for another year. So it has been sitting in my safe for over three years. It really is enjoyable learning about these guns. Again thanks everyone for the help!