LB 10-X AC

(Redirected from LB-10X)
LB-X Autocannon.jpg
LB 10-X AC
Production information
Type Ballistic
Tech Base Clan / Inner Sphere (IS)
Year Introduced Clan = 2828 CW

IS = 2590 TH[1]

Year Extinction IS = 2840[2] [3]
Year Reintroduced IS = 3035 FC[2][4]
Technology Rating E
Availability Ratings E[2]/F[2]/D[2]
Technical specifications
Heat Clan = 2[5]

IS = 2[6]

Damage Clan = 10 (slug)[5] 1/pellet (cluster)

IS = 10 (slug)[6]
1/pellet (cluster)

Minimum Range Clan = 0[5]

IS = 0[6]

Short Range Clan = 1-6[5]

IS = 1-6[6]

Medium Range Clan = 7-12[5]

IS = 7-12[6]

Long Range Clan = 13-18[5]

IS = 13-18[6]

Tons Clan = 10[5]

IS = 11[6]

Critical Slots Clan = 5[5]

IS = 6[6]

Ammo Per Ton Clan = 10[5]

IS = 10[6]

Cost (unloaded) Clan = 400,000

IS = 400,000[2]

Ammo Cost (per ton) Clan = 12,000 (slug), 20,000 (cluster)

IS = 12,000 (slug), 20,000 (cluster)

BV (2.0) Clan = 148[7]
19 (Ammo)[7]

IS = 148 [8]
19 (Ammo)[8]


Introduced in 2595 by the Terran Hegemony. The LB 10-X Autocannon is essentially a 'Mech-mounted shotgun, capable of firing special "cluster rounds" that split apart after being fired, allowing the weapon to either spread damage out or focus damage on a small area, depending on the range. LB-X Autocannons are able to use either the special cluster rounds or standard autocannon rounds. The LB 10-X Autocannon, having a higher caliber, causes higher damage than lower-caliber autocannons, though it is limited to medium ranges.[9][10][11]


The LB 10-X AC is manufactured on the following planets:

Armstrong Class-B ClusterGun[edit]

Manufactured on Manufactured by Typically used in References
Sterope Sterope Defense Industries

Mydron Excel[edit]

The Mydron version of the LB-10X is an 80mm autocannon.[12]

Manufactured on Manufactured by Typically used in References
Bithinia Bithinian Ballistics Marauder II [citation needed]
Gulkana Yeffters Weapons Factory Marauder II [citation needed]

Oriente Model O[edit]

Unlike many post-Succession War era LB 10-X Autcannons, the Oriente Model O is actually a Star League era weapon, whose manufacturing line survived the early Succession Wars - with production only ceasing due to the Inner Sphere-wide decline in material technologies. When the Helm Memory Core reversed this trend, Oriente Weapon Works was able to reactivate their idle production line in short order, rather than having to expend R&D efforts to do so.[13]

Manufactured on Manufactured by Typically used in References
Oriente Oriente Weapon Works MAD-5M Marauder, ALB-3U Albatross [14] [15]

Other Models[edit]

Brand Planet Company Used by References
Defiance Disintegrator Hesperus II Defiance Industries  ??? [citation needed]
Imperator Code Red Nanking
Kallon Industries
Imperator Automatic Weaponry
 ??? [citation needed]
Kali Yama Kalidasa/Kendall Kali Yama Weapons Industries Incorporated  ??? [citation needed]
Luballin Wotan Weigel Armory and Munitions  ??? [citation needed]
NAIS Mk. 1 Hesperus II Defiance Industries (NAIS Refit) HCT-3F Hatchetman Austin [16]
LB-X-P Type 10  ??? Luthien Armor Works HTM-27T Hatamoti-Chi Daniel [17]


  • LB-X-P
    The Federated Commonwealth employed an experimental version of the LB 10-X during the War of 3039, giving it to certain elite units for field testing. While similar to standard models, these prototypes required an additional critical slot, were slightly less accurate, and could jam in certain cases.[18]
    LB 10-X-P
    In development prior to the Reunification War, the LB 10-X-P was a prototype pushed into service with the Star League Defense Force in time for the closing years of the campaigns in the Rim Worlds Republic and Taurian Concordat. The LB 10-X-P was functionally identical to the LB 10-X, with the exceptions of requiring 1 additional critical slot, suffering a -1 modifier to the cluster hits roll when using cluster munitions, and jamming in a fashion identical to that of the Ultra Autocannon class of weapons on a to-hit roll of 2.[19]


  1. Interstellar Operations, p. 72, "LB 10-X Autocannon-P"
  2. 2.0 2.1 2.2 2.3 2.4 2.5 Tech Manual, p. 290, "Heavy Weapons And Equipment Table"
  3. Second Succession War, p. 102, "Weapons and Equipment Extinction Table"
  4. Mercenaries Supplemental II, p. 88, "Upgraded Technologies Table"
  5. 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 TechManual, p. 343, "Clan Heavy Weapons And Equipment Table"
  6. 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 TechManual, p. 341, "Inner Sphere Heavy Weapons And Equipment Table"
  7. 7.0 7.1 TechManual, p. 318, "Clan Weapons and Equipment BV Table"
  8. 8.0 8.1 TechManual, p. 317, "Inner Sphere Weapons and Equipment BV Table"
  9. TechManual, p. 207, "Autocannon - LB-X Autocannon"
  10. Technical Readout: 2750, p. 8, "LB 10-X Autocannon"
  11. Technical Readout: 3050, pp. 215-216, "LB-X Autocannon"
  12. Field Manual: Mercenaries, p. 36
  13. Handbook: House Marik, p. 134 - "Oriente Weapon Works Corporation"
  14. Technical Readout: 3050, p. 174 "Marauder"
  15. Technical Readout: 3055 Upgrade, p. 74 "Albatross"
  16. Starterbook: Sword And Dragon, p. 22, "HCT-3F Hatchetman Austin"
  17. Starterbook: Sword And Dragon, p. 38, "HTM-27T Hatamoti-Chi Daniel"
  18. Historical: War of 3039, p. 145
  19. Historical: Reunification War, p. 180, "LB 10-X (LB 10-X-P)"