MP60

The MP60 is a part of a family of submachineguns offered by Heckler & Koch on the open market. Various national and mercenary groups use the weapon extensively. While designed originally to be a railgun, the designers felt that a caseless system based on the original LMG11 design from the late twentieth century. The weapon fires subsonic 5mm rounds and is fed from a 50 round box magazine behind the trigger. It is fully ambidextrous and weighs only 2 kg when fully loaded.

EDIT: I originally tried to make this weapon more like a Calico weapon (helical feed system) but ended up with the Avatar style feed system.