Extended Range Large Laser

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.


The Extended-Range Large Laser is manufactured on the following planets:

BlazeFire Sweetshot[edit]

Manufactured on Manufactured by Typically used in References
New Syrtis Johnston Industries [citation needed]

Cyclops XII[edit]

Manufactured on Manufactured by Typically used in References
Skye Cyclops Incorporated [citation needed]

Defiance Model 6[edit]

The Model 6 is exported to Carlisle.[6]

Manufactured on Manufactured by Typically used in References
Hesperus II Defiance Industries Razorback [6]

Diverse Optics Sunbeam[edit]

Manufactured on Manufactured by Typically used in References
Gibson Gibson Federated BattleMechs  ??? [citation needed]
Irian Diverse Optics Incorporated  ??? [citation needed]
Sterope Sterope Defense Industries  ??? [citation needed]
Brand Planet Company Used by References
Blankenburg Terra Blankenburg Technologies  ??? [citation needed]
Diverse Optics Type 30X Kessel Diverse Optics Incorporated  ??? [citation needed]
Exostar Delavan Dynamico Limited  ??? [citation needed]
ExoStar Pinnacle (Clantech) Delavan Dynamico Limited VLP-1D Vulpes [7]
Firmir UltraLase Betelgeuse Firmir Weaponry Shen Yi [8]
Hellion X-III Andurien/Westover
Andurien AeroTech - Free Worlds Defense Industries
Grumman Amalgamated
 ??? [citation needed]
Lushann Redbeam 2 Lushann Lushann Industrials Limited  ??? [citation needed]
Martell Corey Hellespont Industrials  ??? [citation needed]
Maxell Chukchi III Maxell Metals Incorporated  ??? [citation needed]
RAMTech 1200X New Kyoto RAMTech  ??? [citation needed]
Series 7Ja Tamaron Ashton 'Mech Production Complex  ??? [citation needed]
Series 7N Huntress Abysmal Manufacturing Complex  ??? [citation needed]
Series 7NC Barcella Barcella Alpha  ??? [citation needed]
Victory Nickel Alloy Marduk Victory - (Norse BattleMech Works)  ??? [citation needed]


  • 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.[9]

Apocryphal Variants[edit]

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.[10]

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. 6.0 6.1 Technical Readout: 3067, p. 52, "RZK-9S Razorback"
  7. Technical Readout: 3145 Federated Suns, p. 42, "VLP-1D Vulpes"
  8. Technical Readout: 3085, p. 92, "Shen Yi"
  9. Historical: War of 3039, p. 145
  10. "BattleTech Video Game", Equipment