MechWarrior Online Wiki
Equipment Overview
Large Laser 
ER Large Laser.JPG
Tech Base: Inner Sphere 
Equipment Type: Energy Weapon 
Tonnage: 5 tons
Critical Slots: 2  
Item Health: 10  
Cost: Cbill.png 400,000  
Sell: Cbill.png 200,000  
Equipment Specifications
Recycle: 3.25
DPS: 2
Duration: 1.25
Heat: 8
HPS: 1.78
Range: 675m 
Maximum Range: 1350m
Impulse: 0
Cockpit Shake: 0
Heat Scaling: 3




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.


  1. Piranha Games\MechWarrior Online\Game\GameData.pak\Libs\Items\ItemStats.xml
  2. How screen shake is calculated