Real steel Parts on a GBB rifle?

[SirM4alot]

Hello!

I was planning on making a Norwegian army Airsoft Loadout, with a GBB HK416 rifle but I am not aware of an actual HK416N being produced "out of the box".

The Norwegian army use the HK416 with:

16.5 inch barrel
H&K Battlegrip Pistol Grip
H&K 417 type Crane stock

Also issued with an Aimpoint Comp4 (but that's not as important)

So I wanted to ask, If I got a Gas Blowback HK416 (Any model), If I were to buy Real Steel HK416 Crane stock and Pistol grip etc. Would it fit? GBB guns seem the closest to Real firearms (as far as Airsoft goes) so I was wondering If I'd have trouble with the stock tube or installing a H&K battlegrip pistol grip.

Thanks!

/Josh