"This is gun powder for a bow gun arrow."
— Item examination - English
— Item examination - Japanese
The Bow Gun Powder (ボウガン用火薬,bō gan-yō kayaku?) can be combined with bow gun arrows to make explosive bow-gun bolts. They are uncommon yet useful; only ten explosive arrows can be made at a time, but they can help take down certain creatures in less shots than it would require using a Handgun or regular Bowgun bolts.