I usually shoot open from a Farley rest, but recently bought a used sinclair F-class bipod to experiment with, that attaches to sling swivel stud. Which of course most of my rifles no longer have or never had. Where can I find adapters to allow quick detachable mounting via say picatinne rail section on an AR, Arca rail, or Anschutz style rail. Would like to have the option to use it with multiple rifles.