Sight of True Shooting (5e Equipment)

Wondrous item, uncommon (major) (require attunement)

Covered in arcane glyphs, this scope allows you to cast true strike as a bonus action, and at a range equal to the range of your ranged weapon. For this property to work, you must attach the scope to a two-handed ranged weapon that has the ammunition property, in a process that lasts for the duration of the attunement process. Thereafter, the scope can't be removed unless you unattune to it.