There might be other ways to obtain this item, but it might not be ever available again.
This skincrate contains Halloween festive skins, the Batwing.
They can be bought for a limited time during the R2DA Halloween Event 2018.
It should be noted that recycling dead bats to paint your weapons is pretty much frowned upon by every sovereignty in the world. I heard animal activists are still alive.
However, there's only anarchy, no sovereignty. Do as you please with these boxes then.
- Second Halloween related skincrate.
- Third event related skincrate overall.
- This skincrate can be used on 9 weapons, namely: