This version have just been released! 
In my mind, these are great for varmint/precision weapons. Here are some pics…
C4
MUR - 1s is different from MUR how?
Forward assist.
more pics and info here:
http://www.militarymorons.com/weapons/ar.uppers.html#mur
Ooh- this one has a gold logo too.
Is it just me or do the logos and lettering look like model airplane decals? I think they look VERY nice in person with the deep black outline but it reminded me of the old decals. Just an observation. 