It just seems like the FN is a little over priced for what it is. If it's really worth the extra $300 I'd be down to get one.
I want a gun that I can trust that handles and feels just like my work gun. I don't care about markings or authenticity. I want to simulate my work gun to train with.
I use my own sling and light because the stuff they issue us sucks. And we have Trijicon MROs, I can get one of those and the mount no problem also.
I figured this might be more nuanced that just slapping a rail on a carbine so I'm glad I asked.