The MK3A1 (Pancor Jackhammer) is a very lethal close quarters weapon. While doing less damage per shot than the pump-action shotguns, it does a bit more damage than the S12K (or DAO-12), and it can fire all 7 shots in just over one second. Like all shotguns, it is not accurate beyond short range, and it has an enormous recoil penalty.
- Caliber: 12 gauge
- Action: Gas operated, selective fire
- Country of origin: USA
- Design Company: John Anderson
- Upgrades: none