I like picking up Vulcans whenever I can find them from my local Goodwill. One day I bought a really rough looking one, it had obviously been outside for a long time. It didn't want to cycle through using full auto, and the bolt wouldn't go forward all the way when primed manually. I opened it up, and found a huge spiders nest, eggs everywhere. That big white plastic assembly was covered in this stuff. Whenever you pushed the bolt forward you would mush part of the nest. to this day, my arachnophobic girlfriend will not go near that thing.