Z-510 focus turret

Forerunner Beam Turrets are weapons used by the Prometheans during the Human-Promethean War

Description
Forerunner Beam Turrets are turrets of a similar nature to those located on Shield 049, but smaller in scale. They are typically constructed by Watchers and possess a deadly, long range beam weapon, akin to a Sentinel Beam. When destroyed, Forerunner Beam Turrets disintegrate in a manner resembling that of Promethean Knights. A number of these turrets are hacked by Cortana on the Mantle's Approach during the Battle of Earth (2557), during which time they took on a blue light, like those of the Sentinels on Requiem