Quote Originally Posted by bobfowler

Let's see now, the seller is in Shanghai, China, only accepts wire transfer payments...
That also describes Shen Hao but they ship Fed Ex.

They sell an adapter to fit RB backs which I guess then fits any graflok back. Would seem the cheapest/simplest way for anybody wanting to use RB backs would be to get an adapter. Maybe Mpex or Badger carry them. At least I think that's what the "RB67 4*5" they sell is for.