Ultra AC/5

(Redirected from Ultra Autocannon/5)
Ultra Autocannon.jpg
Ultra AC/5
Production information
Type ballistic (direct, rapid fire)
Tech Base Clan / Inner Sphere (IS)
Year Introduced Clan = 2825 CMN

IS = 2640 TH[1]

Year Extinction IS = 2915
Year Reintroduced IS = 3035 FC
Technology Rating E
Availability Ratings D/F/D
Technical specifications
Heat Clan = 1/shot

IS = 1/shot

Damage Clan = 5/shot

IS = 5/shot

Minimum Range Clan = 0

IS = 2

Short Range Clan = 1-7

IS = 1-6

Medium Range Clan = 8-14

IS = 7-13

Long Range Clan = 15-21

IS = 14-20

Tons Clan = 7

IS = 9

Critical Slots Clan = 3

IS = 5

Ammo Per Ton Clan = 20

IS = 20

Cost (unloaded) Clan = 200,000 C-bills

IS = 200,000 C-bills

Ammo Cost (per ton) Clan = 9,000 C-bills

IS = 9,000 C-bills

BV (2.0) Clan = 122[2]
15 (Ammo)[2]

IS = 112[3]
14 (Ammo)[3]


Introduced in 2640 by the Terran Hegemony[4], the Ultra AC/5 (also UAC/5) was an upgraded version of the standard autocannon/5. Utilizing a different loading mechanism, the Ultra autocannons were capable of maintaining a substantially increased rate of fire over traditional or LB-X autocannons, at the cost of higher heat and the risk of jamming. Of course, the rapid-fire autocannons required a much larger supply of ammunition to maintain their rate of fire. This high dependence on ammunition limited the effectiveness of the weapon. Being of a lower caliber, the Ultra autocannon/5 had an increased range, at the cost of reduced damage over higher-caliber versions.


The Ultra AC/5 was manufactured on the following planets:

General Motors Nova-5[edit]

Manufactured on Manufactured by Typically used in References
Kathil General Motors Cataphract,

General Motors PTAA[edit]

Manufactured on Manufactured by Typically used in References
New Avalon Banzai Weapons Design Starfire [6]

Imperator Ultra-5A[edit]

Manufactured on Manufactured by Typically used in References
Atreus Imperator Automatic Weaponry Cicada
Shadow Hawk
Luthien Luthien Armor Works Daikyu [8]
Sian Hellespont Industrials Vedette [9]

KWI Ultra[edit]

Developed especially for the STN-3L Sentinel, this advanced weapon was capable of firing at double the rate of a standard AC/5, a feature that was unique at the time.

Manufactured on Manufactured by Typically used in References
Hesperus II Kawabata Weapons Industries Sentinel [10]


  • UAC/P
    During the War of 3039, the Federated Commonwealth employed a prototype version of the UAC/5 among some of its elite units. These systems were similar to standard UAC/5s, except they required an additional critical slot, jammed more often when operating at its maximum rate of fire, and could jam even when fired at the standard rate.[11]


  • This article refers to a common object and addresses the object as a common noun. The preferred term is "Ultra AC/5" or "UAC/5" (except on section titles & table headings, where "Ultra Autocannon/5" is favored).


  1. TechManual, p. 290
  2. 2.0 2.1 TechManual, p. 318, "Clan Weapons and Equipment BV Table"
  3. 3.0 3.1 TechManual, p. 317, "Inner Sphere Weapons and Equipment BV Table"
  4. TechManual, p. 208
  5. Objective Raids, p. 89,
  6. Technical Readout: 3026 Revised, p. 98
  7. Objective Raids, p. 120,
  8. Technical Readout: 3055 Revised, p. 50
  9. Technical Readout: 3058, p. 50
  10. :Technical Readout: Succession Wars, p. 62
  11. Historical: War of 3039, p. 145