http://www.youtube.com/watch?v=lzc22e0xRX4
Wow, it fits onto an AR15 lower receiver! Wait, why? Why do I want that? Who is sitting around thinking "I wish I could convert my AR into a crossbow!" If there are those people, I guess they made this for you. Otherwise all the whiz-bang stuff they talk about seems rather asinine to me; like an underwater book light or something.
(BONUS) Listen at 4.25 for "whiskerbiscuit".
(hidden track) twinbow, pretty friggin cool!
http://www.youtube.com/watch?v...lated