Hi DidrikE
This question was already asked as you probably saw and never answered... my guess is they are not.
For one they are not pictured. That’s not very conclusive but it sure ain’t a good sign
Secondly they are sold separately SKU 9733076 mtl or dl versions available.

I could be wrong of course, and I’ll soon find out as I ordered the crossbow. In any case I’ll keep you posted as soon as I receive it.