rear dovetail to pict rail adapter on Taurus oss?

Curious if anyone even makes anything like this because I've never seen one. Something like a short weaver/pict rail that would attach in place of the rear sight in it's dovetail slot on a Taurus OSS- most mrd's I see have a pict rail base, and I wanted to try to mount one in the back of the gun as not to limit my holster choices much. I just can't seem to find anything that will work by searching around or asking local dealers- assuming someone else at some point thought about doing this and made one, so maybe I'm just using the wrong keywords when I search