Fargo's Mod/Endless Crystal Pouch

The Endless Crystal Pouch is a Hardmode item that acts as ammunition, and can be placed in the Ammo slots in the player's inventory. While in the user's inventory, it acts as a single Crystal Bullet that can be fired from any appropriate Gun without being depleted. Guns with unique shot types will fire their special shots indefinitely. Crafting the Endless Crystal Pouch requires 4 full stacks of Crystal Bullet (999 each).