you see them in military surplus stores sometimes. If you look around youtube, you can find people who have converted them into nerf launchers. it's still fairly tempting for me, but I have no place to put it.
I tried selling it on Ebay, but right before the bidding ended, Ebay took it down. They said we cannot sell these on Ebay. I forgot exactly why since it was a while ago. I will try giving them a call and see if their policy has changed.