I just picked up a vickers for my folder, I am here in Savannah where they are made so it was nice to try it out first. I will link a few different options for you. I did try to mount it to the receiver but as was already said, it pulled way to tight on my neck. I moved it back to the rear mount point and all is well. Since the Army wont let me use my own weapon I will probably never have the need to carry it around folded. The single point that I tried on mine is this one...
http://northeasttactical.com/OnePt.html#elasticcord
It worked well but didn't hold the weapon close enough for me when I wanted to trasnition to pistol.
This is what I used to mount the vickers
http://www.blueforcegear.com/product.cfm?type=cat&cat_id=5&prod_id=81
It works real well but we are going to try cutting it down a little as it is like adding a 6" extension to the sling. We are going to cut it down as short as we can and still loop it on. I should be doing that next week.
I got everything from the guys at Daniel Defense. They too are local and have a nice setup and good prices too. I will post some pics of my setup soon, I am just waiting on a package from LaRue Tactical.