[quote=t2wave]
Please give more detail for creating a copy of "any weapon." What are the limitations?
[/quote]

The weapons he creates are an inferior copy of whatever weapon he makes. Normal weapons are a perfect copy, but if it's a weapon that has any sort of powers, it's a "watered down," or weakened, copy. Also, the more weapons, and the stronger the weapon, the more energy it takes for him to make it.