Minecraft Dungeons:Quiver

Arrow Bundles are consumables in Minecraft Dungeons. When consumed, it will add arrows to your quiver. The amount added depends on the ammo value of the player's bow.

Obtaining
Arrow Bundles are mainly obtained by defeating mobs, and opening chests.

They are a guaranteed drop from Supply Chests.

The common armor enchantment Surprise Gift has a chance to create Arrow Bundles, as well as other consumables.