Bi-Pod Adapter Sig SSG 3000

[Caymanboy]

I did a search, couldn't find what I am looking for.
I am looking for a Picatinny rail with 1 7/8" mounting centers to fit a Sig SSG 3000 for a bi pod.
I do not wish to use the stud mounts, but do wish to use the stud mount holes.
Appreciate the guidance.