My understanding is to do the tritium inserts requires authorization from the Feds so I doubt we would make it as we don't have to volume to justify the cost of going through the registration process, let alone making the sights.
Probably the best way to get one of those is to encourage one of the companies in that business to make it. I have heard that some of the companies that offer those sights will even take our sights and modify them to include the tritium insert.
A few years ago I checked into having one of the companies add the inserts into our sights. I found it would cost us about the same price as a consumer would pay therefore making it cost prohibitive for us to handle it.
Sorry about the slow response, I just returned from 2 weeks of Shot Show and SCI.