I have a VFC FNH Mk16 Mod0 SCAR Light Generation III.
It is an amazing AEG.
This thing comes in a hard plastic case with a CQC and STD barrel. You can field strip it just like the real one. There are no visible wires when you fold the stock and it takes no tool to place the battery in the stock. The mechbox is made of metal. It has a poly piston with ported piston head and 7mm bushings.
It also comes with full trademarks, 95% color matching and a torx screw driver with a hopup adjustment tool. The lower receiver is made of glass filled polymer. It feels soft yet very very solid. The upper receiver is CNCed anodized aluminium. It also has a bolt-catch function. The crush washer also has a rubber washer so your flash hider sits perfectly tight.
I was undecided between this one and a CA but the CA is something like 300$ less, has no bolt-catch, not matching colors, no torx screw, no full trademarks, no 7mm bushings, no poly piston and ported head, no CQC barrel, no plastic hard case, visible wires in the stock and it takes a tool to insert the battery.
I bought the VFC and would never get the CA.
Here's my thread about it:
http://www.airsoftcanada.com/showthread.php?t=51540