Words & pics: Browntipx
The configuration I tried to copy is this modern DEVGRU rifle:
…between the RS Daniel Defense rail and the Aimpoint optic, this is probably as light as it gets for an HK416D.
The rail is much easier to grip than the original HK416 rail. That said, having to add those rail sections to bolt on accessories explains why the MLOK system is everywhere and this is not.
You can see in a couple pics I got rid of the rail for mounting a sling and just used a Blue Force Gear UWL instead.
VFC GBB and PTS suppressor, with several RS components added:
Magpul CTR stock
Aimpoint Micro T1 (2MOA)
Daniel Defense Aimpoint Micro mount
CQD sling mount
PRI Gasbuster charging handle
Inforce WML (white/IR)
Hogue grip (I meant to switch this out for the original HK grip)
..and the Daniel Defense HK416 rail
You can follow Browntipx on Instagram.