There was nothing wrong with the M16A3 at launch, with the release of the B2K patch, or with the rent-a-server patch. So why now, after 8 months do they decide it's "over- powered"? I bet it's because all the other weapons they cried about have been nerfed - SCAR-H, FAMAS, USAS-12, Frag Rounds, M249.
Now suddenly it's over-powered. This community really isn't going to stop crying about stuff that kills them until we get Nerffield or Paintballfield 3 where the guns do 1% damage per bullet, are they?
I just hope DICE don't bow to these complainers and nerf it in the next patch. I think they have more to worry about than fiddling around with weapon tweaks again.