From Pathfinder Treasure Vault (Remastered), which isn't enabled.

Aim-Aiding

ITEM 6

Price 225 gp

Usage etched onto armor

Bulk —

Armor etched with this rune aids in routing ranged attacks aimed at an enemy around you. You don't provide enemies cover against your allies' ranged attacks.

Pathfinder Treasure Vault (Remastered)ORC