Extended Range Medium Laser

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ER Medium Laser
Production information
Type Energy (Direct-Fire)
Tech Base Clan / Inner Sphere (IS)[1]
Year Availability Clan = 2824 (CJF)[1]

IS = 3058 (FWL)[1]

Technical specifications
Heat 5[2][3]
Damage Clan = 7[3]

IS = 5 [2]

Minimum Range n/a
Short Range 0[2]

Clan = 1-5[3] IS = 1-4[2]

Medium Range Clan = 6-10[3]

IS = 5-8[2]

Long Range Clan = 11-15[3]

IS = 9-12[2]

Tons 1
Critical Slots 1
Ammo Per Ton n/a
Cost (unloaded) 80,000
Ammo Cost (per ton) n/a
BV (1.0) Clan = 108

IS = 62

BV (2.0) Clan = 108[4]

IS = 62[5]


The Extended-Range Medium Laser (ER Medium Laser) focuses a powerful beam of light on targets that causes damage by melting or shattering armor off of the target.[1]

As the name suggests, the Extended-Range variant of the Medium Laser improves the focusing system of the laser to project it to much farther ranges. The optics are less efficient, though, necessitating more input power for the same armor ablation and thus more waste heat in the weapon.


In the years between the Second Exodus and the beginning of Operation KLONDIKE the nascent Clans began development of what would become the ER Medium Laser. One of the first of the advanced weapon types to be developed, experimental prototype versions of this new weapon were used during Operation KLONDIKE in small quantities. The Clan Prototype ER Medium Laser (ER-ML-CP) available during this period has identical stats to the Inner Sphere ER Medium Laser, other than that it weighs 1.5 tons.[6]


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

Defiance Model XII[edit]

Manufactured on Manufactured by Typically used in References
Furillo Defiance Industries [citation needed]

Diplan M3-XR[edit]

Manufactured on Manufactured by Typically used in References
Ozawa Diplan 'Mechyards? [citation needed]

Diverse Optics Sunbeam[edit]

Manufactured on Manufactured by Typically used in References
Irian Diverse Optics Incorporated [citation needed]

Diverse Optics Sunfire[edit]

Manufactured on Manufactured by Typically used in References
Diverse Optics Incorporated ZU-G60 Anzu [7]

Magna Mk VI[edit]

Manufactured on Manufactured by Typically used in References
Lopez Magna [citation needed]
Stewart Corean Enterprises [citation needed]

RAMTech 1500Z[edit]

Manufactured on Manufactured by Typically used in References
New Kyoto RAMTech [citation needed]
Brand Planet Company Used by References
BrightBloom New Avalon
Achernar BattleMechs
Kallon Industries
 ??? [citation needed]
Ceres Arms Capella/St. Ives Ceres Metals Industries  ??? [citation needed]
ExoStar Pinnacle (Clantech) Unknown ExoStar Laser Technologies UCU-F4 Scarecrow [8]
Martell El Dorado General Motors BLR-2D Warlord [9]
SCI [10]
Series 7J Tamaron Ashton 'Mech Production Complex  ??? [citation needed]
Series J7A Arcadia Arcadia BattleMech Plant CM-T4  ??? [citation needed]
General Systems Huntress Abysmal Manufacturing Complex  ??? [citation needed]


  1. 1.0 1.1 1.2 1.3 TechManual, p. 226, "Laser - Extended-Range (ER) Laser"
  2. 2.0 2.1 2.2 2.3 2.4 2.5 TechManual, p. 341, "Inner Sphere Weapons And Equipment Table"
  3. 3.0 3.1 3.2 3.3 3.4 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. Historical: Operation KLONDIKE, p. 156, "Prototype Clan Systems"
  7. Technical Readout: 3145 Free Worlds League, p. 32-33, "ZU-G60 Anzu"
  8. Technical Readout: 3145 Federated Suns, p. 34-35, "UCU-F4 Scarecrow"
  9. Technical Readout: 3075, p. 88, "BLR-2D Warlord"
  10. "BattleTech Video Game", Equpiment