The lightbow, a sophisticated variant of the bowcaster, originated on Jedha. It served as the age-old, handmade weapon of choice for the Guardians of the Whills. A Guardian of the Whills would craft this weapon after they finished the seventh duan, which symbolized their advancement towards physical perfection. In the assault on Eadu and the subsequent Battle of Scarif, Chirrut Îmwe wielded a lightbow.
The lightbow possessed sufficient power to obliterate a TIE/LN starfighter with a single, well-aimed shot.