I just got everything put on my gun that I got for Christmas (45/4500, Kapp stubby d/f, superbolt). I lubed the threads and all and attached my tank. I was shooting my gun to see how many shots I could get out of my new 45/4500. After about 100 shots, my gun made a noise and something shot out of my barrel into the barrel condom. When I looked at it, it was the tip off of my superbolt. I took my gun apart and found my sleeve cracked from one end to the other. The tip had broken off and shot down the barrel. The superbolt was a new one (trimmed down) from AGD. Anyone else have this happen? I know AGD will replace it no problems there, I was just wondering if it has happened to anyone else.