I have both the 9 and 45 models with threaded barrels and looking for suppressor sights. I see Trijicon is making them for Glocks now. I have searched and haven't had much luck.
I have the same situation, well not quite the same but I have a M&P 40 to 9mm conversion. I can buy a threaded barrel for like $250.00 , but still need suppressor sights. I'm guessing another $100.00 bucks for sights if available. Mine is the 5" pro model.
Thinking the new XDM 9mm threaded for less than $600 might be a better deal!
Let the flames begin!