Arcturan Arms

Arcturan Arms
Corporation Profile
AffiliationLyran Commonwealth
Manufacturing Plant(s)

Arcturan Arms was a military hardware manufacturer based on Arcturus, the former capital of the Lyran Commonwealth.


During the Age of War, Arcturan Arms produced a number of notable vehicles including the Marsden I MBT in 2396,[1] the Büffel VII in 2407,[2] and the Marsden II MBT in 2463.[3] The company also manufactured the second homegrown Lyran-produced BattleMech, the Crossbow, in 2468.[4] Despite these achievements, the company's fortunes suffered when the Lyran Commonwealth shifted its capital from Arcturus to Tharkad, forcing it to shut down its factory in 2490 after producing only a few hundred Crossbows. MacEnroe Motors bought out the financially troubled company in 2541 and would later discontinue Crossbow production in 2550.[4]

During the Jihad, Arcturan Arms expanded its refit facility to produce RetroTech 'Mechs for the LCAF. Production on these lines had shut down by 3079,[5] but the profit money from those lines was used to launch new Marsden II production facilities on Buena[6] and Halfway.[7] In September 3081, Arcturan Arms told the Interstellar News Network that their refit facilities would be producing considerable numbers of the primitive Archer, Commando, and Dervish 'Mechs for some decades yet; RetroTech 'Mechs seen as being ideal for low-level organizations such as militia forces.[8]

After the rebirth of the Tamar Pact, Clan Sea Fox, working in concert with the Pact's leadership, retooled Arcturus Arms' production lines to produce Clan OmniMechs. In exchange, they received the opportunity to claim three of every four Crossbows produced there.[9]


Arcturan Arms has a manufacturing center on the following planets:


The facility on Arcturus suffered no capital and personnel losses, but the operating capacity of the factory was reduced to 40% of their main output in 3079.[10]

Components produced on Arcturus:[11][12][13][14][15][16]
Component Type
Commando[5] Primitive light BattleMech
Dervish[5] Primitive Medium BattleMech
CRS-6B Crossbow[11] Heavy BattleMech (Discontinued 2550)
CRS-6C Crossbow[11] Heavy BattleMech (Discontinued 2550)
CRS-9A Crossbow[11] Heavy BattleMech (As of 3071)
Archer[5] Primitive Heavy BattleMech
Büffel VII[12] Support Vehicles
Büffel VIII[12] Support Vehicles
Kelswa Assault Tank[13] Tracked Vehicles
Marsden I MBT[14] Tracked Vehicles
Marsden II MBT[15] Tracked Vehicles
Vedette V7[16] Tracked Vehicles
Arcturus Engines CM Elite Marsden I[14]
OmniDiesel 180 Marsden II[15]
Arc Walker 6X-B Crossbow[11]
Fuel cell
Arcturan Electric 250 Vedette V7[16]
Fusion Engine
AA Eterna 300 Crossbow[11]
Pitban 285 Kelswa[13]
Armor (BattleMechs & Combat Vehicles)
AA Battleplate Marsden I[14]
AA-50 Diamondplate Marsden II[15]
Diamond Skin Beta Series Crossbow[11]
Ferro-fibrous Armor
ArcShield Heavy Ferro-fibrous w/CASE Kelswa[13]
Durallex Special Heavy Ferro-fibrous w/CASE Vedette V7[16]
Communications System
Arc-Signal A75 Kelswa[13]
Arc Signal 100 Marsden I[14]
Arc Signal 750 Marsden II[15]
Arc Signal 1100 Crossbow[11]
TharHes Muse 54-58K Vedette V7[16]
Targeting-Tracking System
Angst Clear View 2A Kelswa[13]
Arc Walker Prime Crossbow[11]
Land Shark Scanner 15 Marsden II[15]
Scorpion Series AFC System Marsden I[14]
TharHes Mars-1 Vedette V7[16]
Medium Laser
Rassal Blue-Beam Crossbow[11]
ER Medium Laser
Defiance Model XII Kelswa[13]
Bombast Laser
Maxell Maximum Vedette V7[16]
A-4 "Lightning" Series Crossbow
Gauss rifle
Grizzard Model 200 Kelswa[13]
Magshot Gauss rifle
Poland Main Model C Vedette V7[16]
Arcturan Arms Longarm Series Marsden I[14] & Marsden II[15]
CDC Double-Five Crossbow[11]
Alpha Wave Marsden I[14] & Marsden II[15]
Machine Gun
General A 70 Model Marsden I[14] & Marsden II[15]


Components produced on Buena:[6][13][17]
Component Type
Kelswa Assault Tank[13] Tracked Vehicles
Marsden II MBT[6] Tracked Vehicles
Manteuffel OmniVehicle[17] Tracked Vehicles
Fensalir[17] WiGE


Components produced on Halfway:[7][12]
Component Type
Marsden II MBT[7] Tracked Vehicles
Büffel VIII[12] Support Vehicles


  1. Era Digest: Age of War, p. 23: Marsden I MBT
  2. Technical Readout: 3075, p. 276: "Büffel Engineering Support Vehicle"
  3. Technical Readout: 3075, p. 274: "Marsden II Main Battle Tank"
  4. 4.0 4.1 Technical Readout: 3075, pp. 278–279: "Crossbow Profile"
  5. 5.0 5.1 5.2 5.3 Objectives: Lyran Alliance p. 4: "RetroTech Facilities (Limited Commercial Production by End of 3079)"
  6. 6.0 6.1 6.2 Objectives: Lyran Alliance, p. 6: "Arcturan Arms"
  7. 7.0 7.1 7.2 Objectives: Lyran Alliance, p. 14: "Arcturan Arms"
  8. Jihad Final Reckoning, p. 33: "The Retro Wave"
  9. Elements of Treason: duty, ch. 21
  10. Objectives: Lyran Alliance, p. 3: "State of the Industry at a Glance (Dec 3079)"
  11. 11.00 11.01 11.02 11.03 11.04 11.05 11.06 11.07 11.08 11.09 11.10 Technical Readout: 3075, p. 278: "Produced Crossbow BattleMech Components"
  12. 12.0 12.1 12.2 12.3 12.4 Technical Readout: 3075, p. 276: "Büffel VII Vehicle Profile"
  13. 13.0 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9 Technical Readout: 3145 Lyran Commonwealth, p. 22: "Kelswa Vehicle Profile"
  14. 14.0 14.1 14.2 14.3 14.4 14.5 14.6 14.7 14.8 Era Digest: Age of War, p. 23: "Marsden I Main Battle Tank"
  15. 15.0 15.1 15.2 15.3 15.4 15.5 15.6 15.7 15.8 Technical Readout: 3075, p. 274: "Marsden II Main Battle Tank"
  16. 16.0 16.1 16.2 16.3 16.4 16.5 16.6 16.7 Technical Readout: Prototypes, p. 50: "Vedette Profile"
  17. 17.0 17.1 17.2 Field Manual: 3145, p. 121: "Buena Province"