Yeah I know...I love it!
I think its feasible to find some in Marine hands by TDM. I doubt FN would cancel the project if there was a looming war in the near future. The P90 would not be a seller during war.
I might move to have a few of those show up in my campaign somehow...or perhaps just some have captured KPV's?
The ASP seems to at least have made it to production...
http://www.army-guide.com/eng/product3643.html