I have to say, this thing is pretty awesome. I find the smooth movement of the apparatus mesmerizing. However, I also have to say, the inventor totally gives me the creeps (no offense, old man). Known on YouTube as the "Duckman", this elderly gentleman (who could be straight out of Deliverance) created this fully automatic crossbow as a solution to his arthritic problems.
Weird. What is he planning on using it for? I wouldn't want him pointing that thing at me. Note, check out videos 2 and 3 in the gallery below as well to view more of his fine craftsmanship.