Production information
Manufacturer Alliance Defenders Limited
Bergan Industries
Coventry Metal Works
Detroit Consolidated MechWorks
Diplass BattleMechs[1]
Earthwerks Incorporated
Earthwerks-FWL, Incorporated
Hellespont Industrials
Interstellar Arms[2]
Majesty Metals and Manufacturing
Pinard Protectorates Limited
Vandenberg Mechanized Industries
Production Year 2479[3][4][5]
Model STG-3R
Class Light
Cost 1,615,440 C-bills
Technical specifications
Mass 20 tons
Chassis Earthwerks STG
Armor Riese-100
Engine GM 120
Communications System Datacom 26
Speed 91.6 km/h
Jump Jets Chilton 360
BV (1.0) 320[6]
BV (2.0) 359[7][4][8]


The Stinger was a light BattleMech that was built in 2479 as a direct competitor to the Wasp BattleMech. The Stinger's various roles included reconnaissance, scouting, raiding, and functioning as a trainer 'Mech. The Stinger's light but varied armament, as well as its jumping capability of 180 meters, made it suitable for these various roles. As of 3025, it was estimated that there were somewhere around five thousand Stingers left in use by the various states of the Inner Sphere. [9] [4]

The Stinger is one of the Unseen Mech designs.

Weapons and Equipment[edit]

The Stinger carried a light weapons load, with an Omicron 3000 Medium Laser as its primary weapon. The laser was backed up by two LFN Linbald Machine Guns. [9] [10] [4]


  • STG-3G 
    The 3G Stinger traded the two Machine Guns for a second Medium Laser. While this variant increased the Stinger's lethality against other 'Mechs, it also made heat management a little more complicated for less experienced MechWarriors. [9] [4] [11] BV (1.0) = 438,[6] BV (2.0) = 497[12][13]
  • STG-3P 
    A Jihad era repair yard refit of the venerable Stinger unveiled in 3071, the 3P was built on an Endo Steel chassis and carried, as its only weapon, either a Fusigon Mini or a Lord's Light 3 Light PPC capable of striking a target at up to five hundred and forty meters. Additionally, the 3P carried four tons of Ferro Fibrous armor to protect it from enemy fire. [16][10] BV (2.0) = 489[17][18]
  • STG-5G 
    Based on the 3P variant, this model also uses Endo Steel chassis and adds an XL Engine. The engine gives the STG-5G a top speed of 111km/h and provides enough weight savings to add more armor and an advanced PPC Capacitor. In addition to the extra armor, the pilot is protected by a Full-Head Ejection System. BV (2.0) = 614 [19]
  • STG-5T 
    Capable of engaging an enemy at any range, the Periphery-manufactured 5T variant of the Stinger was armed with two Doombud MML-3 launchers, which were capable of firing both LRM and SRM ammunition, making the 5T extremely flexible. Appearing in Taurian and Magistracy units, the 5T was powered by an XL engine and was clad in three tons of Durallex Light Ferro-Fibrous armor.[16] [18] [27] BV (2.0) = 341[28]
  • STG-6L 
    The House Liao-manufactured 6L variant of the Stinger utilized an Endo-Steel structure and Stealth Armor. The 'Mech carried two Medium Lasers and a Guardian ECM Suite. The 6L is produced on Detroit and Sian.[23] [29] BV (1.0) = 603,[30] BV (2.0) = 680[31]
  • STG-6S 
    Intended to operate at a longer range than most other Stinger variants, the House Steiner manufactured 6S used a Light Fusion Engine to push the 'Mech up to speeds of 118.8 km/h and was capable of reaching speeds of 151.2 km/h through the use of a MASC system. The 'Mech could also jump up to two hundred and ten meters. An additional weight saving measure on this variant was the use of a Small Cockpit. The 'Mech was armed with two Light Machine Guns for anti-infantry and crowd control use. To defend itself against 'Mechs and vehicles, the 6S had a single ER Medium Laser.[16] [18] [32] BV (2.0) = 478[33]
  • STG-7S 
    This Steiner version maximizes jump range by mounting eight Improved Jump Jets, allowing it to cover 240 meters in a single leap. The Stinger 7S is built around an Endo-Steel chassis and carries an XL Engine, but carries only three tons of armor and a single ER Medium Laser. Pilots should therefore use the jumping ability to the fullest. A Full Head Ejection System is available in case the armor is breached. One unique feature of this model is that the left leg carries slightly less armor than the right leg. [18] BV (2.0) = 382[34]

BattleMech Gallery[edit]


  1. Field Report 2765: Periphery, p. 11, "Infrastructural Integrity"
  2. Field Manual: 3145, p. 189, "Fronc Reaches"
  3. Technical Readout: 3025, p. 12
  4. 4.0 4.1 4.2 4.3 4.4 Technical Readout: 3039, p. 282
  5. Era Digest: Age of War, p. 11
  6. 6.0 6.1 6.2 Combat Operations, p. 121
  7. Record Sheets: Phoenix Upgrade (Complete), p. 21
  8. Record Sheets: 3039 Unabridged, p. 442
  9. 9.0 9.1 9.2 Technical Readout: 3025, p. 12
  10. 10.0 10.1 Record Sheets: Phoenix Upgrades, p. 20
  11. Record Sheets: Phoenix Upgrades, p. 19
  12. Record Sheets: Phoenix Upgrade (Complete), p. 19
  13. Record Sheets: 3039 Unabridged, p. 441
  14. Historical: Operation Klondike, p. 159 "SLDF Royal Units - STG-3GB Stinger"
  15. Record Sheets: Operation Klondike, p. 20
  16. 16.0 16.1 16.2 "Faster Than a Falling Atlas"
  17. Record Sheets: Phoenix Upgrade (Complete), p. 20
  18. 18.0 18.1 18.2 18.3 Technical Readout: 3085, p. 229
  19. Record Sheets: 3085 Unabridged — Project Phoenix, p. 17
  20. Technical Readout: 3050, pp. 58-59
  21. Record Sheets: Phoenix Upgrades, p. 22
  22. Record Sheets: Phoenix Upgrade (Complete), p. 22
  23. 23.0 23.1 Technical Readout: Project Phoenix, p. 16 "STG-5R Stinger"
  24. Record Sheets: Phoenix Upgrades, p. 23
  25. Combat Operations, p. 140
  26. Record Sheets: Phoenix Upgrade (Complete), p. 23
  27. Record Sheets: Phoenix Upgrades, p. 24
  28. Record Sheets: Phoenix Upgrade (Complete), p. 24
  29. Record Sheets: Phoenix Upgrades, p. 25
  30. Combat Operations, p. 123
  31. Record Sheets: Phoenix Upgrade (Complete), p. 25
  32. Record Sheets: Phoenix Upgrades, p. 26
  33. Record Sheets: Phoenix Upgrade (Complete), p. 26
    The record sheet book has the BV listed at 477, but the later Master Unit List entry says 478
  34. Record Sheets: 3085 Unabridged — Project Phoenix, p. 23