Arcane Archer's arrow question

[Eradis]

Regarding the arcane shots of the Arcane Archer, a question came to my mind. Are those magic imbued attack using a standard arrow or is the shot conjuring an arrow? The question popped in my head when I read about the arrows that vanishes after they hit or go past their range. It's mostly to know how to keep track of ammunition with that class.

[Foxhound438]

in the original UA it conjured an arrow, but since that got left out it says to me that it's no longer the case that you get the arrow for free.

[Eradis]

It would make sense, especially since you call that it is an arcane shot after it hits.