Ancient Arrow Head

[junker]

Hello Friends,

another riddle for discussing (or solving it).

The seller told me, that this is an arrow head of a heavy crossbow from china and more than 2000 years old.

I am not sure because the barbe has an quadrat shape and isnt sharpened.
Maybe he ist right, but i have no literature about this time to proof this.
Do you have ?

best regards from Dirk