I finally found a solution. I stumbled upon the Samson Mfg. Scout Rail for the Ruger PCC.
It replaces both the front and rear sites with a single pic rail that runs the length of the barrel. It should attach using the existing mount screws from the sights. However, mine did not.
The first rail i received was drilled a couple mm shy of the screws being able to bite into the barrel threads. Samson cust. svc. was great. The admitted it was a known issue with some of the earlier models and were happy to exchange for a corrected version.
Unfortunately, I received the same model upon exchange. Return shipping what it was, I wasn’t going to spend in return shipping what the unit cost.
It took a while to figure out what the necessary screw size and thread count, so I figured I’d post this here in case anyone ran into the same problem.
Search for 6-48 x 1/4 or x 5/16.torx screws.Both worked but I ultimately went with the 5/16 as the 1/4 seemed to only give me a couple of threads worth of purchase.