For years I had an oppertunity to purchase a mess of paintguns that they used for training there. They would have needed to be converted from .62 cal to .68 to be useable and the price wasn't in line to make it feasable. Every time I was offered them in the back of my head I though they probably glowed in the dark...after all the info that has come out about the place that may not have been too far from the truth.