So, did you go with Bowie or? I'm shopping around for a place to mill a slide for an RMR install.
One place I am looking at is AETi.
ATEi | Turning good guns into combat weapons systems
I called the company yesterday to ask a few questions. Great experience. The lady who answered the phone was patient, knowledgeable, courteous, and offered no pressure to order anything. Just happy to answer my questions.
The online reviews I've seen concerning AETI are overwhelmingly positive. My own very brief experience is very good. Don't know if they do the Shield mod you want or not, but might be worth a call over there. Nice folks.
BTW, thanks to Steved13 and Rastoff for some input about RMR's. Very helpful.