I wonder what the holdup is.
I ordered an extra trigger block spring from their part department and it was pure comedy.
The parts lady didn't have a parts diagram, she didn't have a part number, and she didn't have a photo of the spring.
She literally had to walk over to her FNS9 part bins and then go through each one until she found a "really small spring" in a package.
They really need to provide a parts list and schematic like most every other manufacturer does.
The FNS9 has certainly been around long enough by now to provide that info to their customers.