Alternative Exploding Crossbow Bolt
The original recipe in the game is fine. If you have all the stuff to make them but what about all those steel bolts you find in your journey. Now you can turn those steel bolts into exploding bolts by simply adding gun powder and duct tape at a workbench...
I have not looked at the files for A17 yet but from the way, the mod system works with the guns. They did not so much so get rid of the gun part system but convert it into the mod slot system. I have a feeling they could not find a way to make both of them work so they just scrapped the gun...