Similar to which one? No link, no picture...

I'll assume that you're looking for the "kickstand" that mounts to one leg of a tripod and reaches back to the heel of your buttstock.

Bottom line - those suck. That's why they're not made anymore.

Get a different head for your tripod. Primos, Bog Gear, Caldwell, etc - they all have multi-point rifle support heads for their tripods, and most of them can be adapted to fit other tripod brands.