Mog's Quiver

Mog's Quiver is an armor piece added by Witchery. It provides armor points at 241 durability. When worn in the chest slot, it allows the player to shoot an endless supply of arrows. Unlike the Infinity enchantment, it does not require any arrows to be present in the inventory. The arrows will shoot much faster than normal arrows, and cause increased damage to flying or jumping creatures. It will also give the target a Weakness effect for about 10 seconds after shooting them. Wearing the Quiver while near a player wearing Gulg's Gurdle will give the Gurdle [sic] wearer resistance.

It can be obtained by slaying Mog.