Yes the USP is the real thing, the law enfocement and competition versions come with the jet funnel and 16 round mags. That whole setup is RS short of the 416 and mags.
As for the 416 its got a
RS Magpul M93 stock
G&P aimpoint (eotech 553 soon)
Dees custom 6.01 TB
Systema metal hopup unit
Systema helical retarded stupid mega torque up gears
G&P poly piston & systema silent piston head
Systema turbo motor
Madbull M130 spring
Mosfet unit
and probable more I cant think of off hand.
Ill try to get new pics of it up. Those last few were kind