Shot410ga - Yeah, they are tricky. However, a friend once handed me a 66 stock, a barrel & receiver, and a mason jar full of parts (with one or two springs sticking out the top, as I remember). I got it back together with nothing left over - that's aways a good sign. The guy said it shot, though I never actually saw it in action. It can be done, but I would not want to have to do it again.