The MP2000 Information
          about the MP2000 says that the main reason for the project was to provide a lower cost alternative
          to the MP5, with some of the design features of the SMG I and II.  The lower receiver, including the
          pistol grip, trigger mechanism and magazine well were made of polymer.

          The most interesting feature of the MP2000 is that the design appears to have been at least partially
          resurrected and improved upon in the guise of the new UMP.  Look at the comparison photos below
          of the MP2000 directly above the UMP.  The similarity is striking.

          It quickly became apparent to the Armed Forces that improving on the MP5 would be difficult.  All of
          the prototypes  were abandoned in favor of the MP5-N, a standard MP5 with threaded barrel, tritium
          front sight, retractable stock and ambidextrous trigger group.  This model continues to serve with
          distinction, and has a national stock number as well.
The MP2000 with suppressor attached.  Also readily apparent is the vertical foregrip.  The MP2000 featured a bolt locking device for added
            sound suppression.  The MP2000 was a further refinement of the SMG I and II.  It too featured the STANAG mount used on the G41 series
            and HK21E/23E series