Ultra AC/2

Ultra Autocannon.jpg
Ultra AC/2
Production information
Type ballistic (rapid-fire)
Tech Base Clan / Inner Sphere (IS)
Year Availability Clan = 2827 (CGS)

IS = 3057 (FW)

Technical specifications
Heat Clan = 1/shot

IS = 1/shot

Damage Clan = 2/shot

IS = 2/shot

Minimum Range Clan = 2

IS = 3

Short Range Clan = 1-9

IS = 1-8

Medium Range Clan = 10-18

IS = 9-17

Long Range Clan = 19-27

IS = 18-25

Tons Clan = 5

IS = 7

Critical Slots Clan = 2

IS = 3

Ammo Per Ton Clan = 45

IS = 45

Cost (unloaded) Clan = 120,000 C-bills

IS = 120,000 C-bills

Ammo Cost (per ton) Clan = 2,000 C-bills

IS = 2,000 C-bills

BV (2.0) Clan = 62[1]
8 (Ammo)[1]

IS = 56[2]
7 (Ammo)[2]


The Ultra AC/2 (also UAC/2) was the smallest bore autocannon of the Ultra series. Ultra autocannon were capable of firing twice in a turn, doubling heat and—potentially—damage. Since it was the smallest, the Ultra AC/2 also had the longest range and most ammo per ton of any Ultra autocannon; however, it also dealt the least amount of damage.


In the years between the Second Exodus and the beginning of Operation KLONDIKE, the nascent Clans began development of what would become the Ultra AC/2. Experimental prototype versions of this new weapon were used during Operation KLONDIKE in small quantities. The Clan prototype Ultra AC/2 available during this period had identical stats in comparison to the Inner Sphere Ultra AC/2, though the latter took up additional mounting space and was more prone to jam.[3]


The Ultra AC/2 was manufactured on the following planets in the Inner Sphere:

Mydron Model D-rf[edit]

The Model D-rf fired 20mm hyper-velocity depleted uranium-tipped shells[4]

Manufactured on Manufactured by Typically used in References
Gulkana Yeffters Weapons Factory JagerMech III [4]
Quentin Independence Weaponry JagerMech III [5]
Talon Kallon Industries JagerMech III [5]


  • This article refers to a common object and addresses the object as a common noun. The preferred term is "Ultra AC/2" or "UAC/2" (except on section titles & table headings, where "Ultra Autocannon/2" is favored).


  1. 1.0 1.1 TechManual, p. 318: "Clan Weapons and Equipment BV Table"
  2. 2.0 2.1 TechManual, p. 317: "Inner Sphere Weapons and Equipment BV Table"
  3. Historical: Operation Klondike, pp. 156–157: "Prototype Clan Systems"
  4. 4.0 4.1 Imminent Crisis, ch. 1
  5. 5.0 5.1 Technical Readout: 3060 Revised, p. 110