The Gaping Sight of Khazul-Kin

A heavy-duty bronze and obsidian bracket designed to be bolted onto the riser of a Greatbow or heavy war bow. It features a rotating mechanical iris made of razor-thin sheets of volcanic glass that hums with a deep, rhythmic vibration. When a heavy arrow is nocked, the iris dilates and emits a faint violet light that projects a translucent targeting reticle in the wielder's field of vision.