The Noveske Gen 2/3 lowers are forged.Here is their billet lower with the flaired magwell IMG_0194-800.jpg
Thier flared magwell lowers are all forged. The picture you linked was pulled from here. http://blogs.militarytimes.com/gearscout/2011/03/01/noveske-flared-forged-lower-aka-the-ffl/
That lower is a Noveske, it has a larger magwell, and it is a billet - not forged. I will make sure to call them tomorrow to confirm. They may have changed to billet for the G3s but all previous N4s with flared magwells were forged just like the article says.