Introduced in 2620 by the Terran Hegemony. The Extended-Range Large Laser (ER Large Laser) focuses a powerful beam of light on targets that causes damage by overheating or melting the target. As the name suggests, the Extended-Range variant of the Large Laser increases the power of the beam to project it to much farther ranges. The power necessary to facilitate the production of such generates a greatly increased quantity of waste heat. Like other beam weapons, the ER large laser must be held on target for the duration of the beam discharge.
When compared to the standard Large Laser, the ER version fires much farther at the cost of greater heat output. Generally, this weapon is only suitable for large open environments and usually only carried by the heaviest of 'Mechs.