I think about 3 weeks is accurate guess for weapons. Sorry for the super late reply....

If anyone is interested you can grab(pun intended) my SCAR at grabcab.

http://grabcad.com/library/fn-scar-mk17-1

edit: if your a modo user you can grab it from the share site: http://www.luxology.com/asset/scenes/view.aspx?id=3938