UMAREX / VFC HK416D Black Ver.2 Electric Airsoft ( AEG )

This is by far the most exact HK416 replica out on the marked right now thanks to it being licensed by Umarex. The externals are just outstanding and provides an incredible realistic feel. The internals are quite decent and I don' think I will be replacing them any time soon.

The rifle fires out of the box 330 fps with 0.20g bio bb's and 9.4v Nihm battery. Only nunchuck style batter fits in the stock.
The crane stock is so well replicated I could even replace the buttplate with a real steel HK416 buttplate.
The 4" CCW outer barrel allows you to change between 10.5" and 14.5" configurations.

TM 68rd M4 magazines fit perfectly, actually better than the VFC high cap mag that followed with the gun.
I tried using a STAR m4 single hook sling plate but it was about 0.5mm too big (but still works, just tighten the ring good enough),
I'm guessing the VFC Sling Swivels for GBBR fits better but I don't have one at hand to test with.