Kinda old news but I haven't seen it posted anywhere. A company called JLS is making an FN2K AEG. It's supposed to use a hybrid V2 Mechbox with its motor turned horrizontally. The manufacturer also claims the gun is tuned to shoot 370 out of the box.
Video review by some british guy:
YouTube - Review - JLS FN2000 Part 1 of 5
A distributor site with more info and a few pics: