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Extended Range Large Laser

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ER Large Laser
Production information
Type Energy (Direct-Fire)
Tech Base Clan / Inner Sphere (IS)[1]
Year Introduced Clan = circa 2820 CNC[1]

IS = 2620 TH[1]

Year Extinction IS = 2950[1]
Year Reintroduced IS = 3037 DC[1]
Technology Rating E
Availability Ratings E/F/D
Technical specifications
Heat 12[2][3]
Damage Clan = 10[3]

IS = 8[2]

Minimum Range n/a
Short Range 0[2]

Clan = 1-8[3] IS = 1-7[2]

Medium Range Clan = 9-15[3]

IS = 8-14[2]

Long Range Clan = 16-25[3]

IS = 15-19[2]

Tons Clan = 4[3]

IS = 5[2]

Critical Slots Clan = 1[3]

IS = 2[2]

Ammo Per Ton n/a
Cost (unloaded) 200,000
Ammo Cost (per ton) n/a
BV (1.0) Clan = 249

IS = 163

BV (2.0) Clan = 248[4]

IS = 163[5]


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.[1]

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.

As with most Clan energy weapons, the Clans lack their own standard Large Laser.



  • ER-LL-P
    The Federated Commonwealth employed experimental versions of the ER Large Laser among some of its elite units during the War of 3039. While achieving the same range and destructive power, these prototypes were less accurate and generated random heat spikes.[8]

Apocryphal VariantsEdit

Apocryphal Content Starts

The information after this notice comes from apocryphal sources; the canonicity of such information is uncertain.
Please view the reference page for information regarding their canonicity.

These variants were introduced in various apocryphal sources, and thus far have not appeared in any canonical media.

From BattleTech (Video Game):

  • "SCI" 
    A LosTech ER Large Laser found in this game listed with an unknown manufacturer 'SCI.' Stats-wise it is similar to the extinct Terran Hegemony ER Large Laser in Classic Battletech.[9]

Apocryphal Content Ends


  1. 1.0 1.1 1.2 1.3 1.4 1.5 TechManual, p. 226, "Laser - Extended-Range (ER) Laser"
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 TechManual, p. 341, "Inner Sphere Weapons And Equipment Table"
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 TechManual, p. 343, "Clan Weapons And Equipment Table"
  4. TechManual, p. 318, "Clan Weapons and Equipment BV Table"
  5. TechManual, p. 317, "Inner Sphere Weapons and Equipment BV Table"
  6. Technical Readout: 3145 Federated Suns, p. 42, "VLP-1D Vulpes"
  7. Technical Readout: 3085, p. 92, "Shen Yi"
  8. Historical: War of 3039, p. 145
  9. "BattleTech Video Game", Equipment