This weapon blows away anything, with its monsterous clip of 2000, and shocking fire rate of 50 shots per second! (that's around 1,000,000 damage per clip without pierce). It can chew through crowds in seconds, as well as chew a massive hole in your cash. It costs $6000 for one clip. However, this weapon has terrible mobility, and requires a short spool up before firing. The upkeep may be expensive, but performance is excellent, though the initial cost is quite large and you might consider saving up for the MAC-10, MKII, or Seizure.
Note: The clip is actually 1000 but is doubled with Hi-cap Magazines.