I have up for sale a 1/10 Black Billy Wing NT10. I pm'd Bwing himself, and he said he made only 10 of these in black.
It comes with the case signed, the NT10, as well as a Dye UL Barrel.
Asking $800, but considering the condition of the front rubbers and the missing Dye gems, I will take $750. This gun shoots freaking amazing. My friend gets mad because it shoots too straight, and he wants to be able to "drop them in on somebody" whatever that means.
Here are the photos: