Jackhammer
| Certification Required | Heavy Assault |
| Empire | New Conglomerate |
| Primary Mode | Single Shot |
| Secondary Mode | Triple Shot |
| Ammunition | Shotgun Shell or Armor Piercing Shotgun Shell |
| Inventory Dimensions | 3 x 9 (Rifle Holster) |
| Magazine Capacity | 16 |
| Zoom | 2x |
Jackhammer
The Jackhammer is a powerful, three-barrel heavy assault shotgun. With a larger magazine capacity than the Sweeper pump-action shotgun and a higher rate of fire in semi-auto primary mode, it is very powerful in close-quarters combat, although its effectiveness rapidly drops off with range. The secondary mode fires all three barrels in very rapid succession. However, the secondary mode does less damage per shot (and thus will not kill a fully armored soldier wearing Reinforced Exo-Suit armor in one blast), and requires a longer delay before firing again as all barrels must be reloaded.
Shots to kill (Close to Medium Range):
| Standard Exo-Suit | 2-3 shots |
| Agile Exo-Suit | 3-5 shots |
| Reinforced Exo-Suit | 4-6 shots |
| MAX | 11 AP shots |
(The above numbers are taken with 100 Health and full Armor; no MedKits, Implants or Empire Incentives applied)