Hey Stranger, I have a Sidearmor on it's way thanks to your great attention to detail and I might try a similar setup. Got a question on the rail ladders on the top rail. I know you said it impairs the sights a bit, however I've seen ladders that seem to have a slight concaveness down the center. Wasn't sure if you've tried them or know of them. I've tried to find them for comparison , but had no luck. I can't find the post here, but I thought I saw someones pic of theyre sidearmor with it attached?
I found the ones I was mentioning above, they are the Surefire z70's, Looking closer at them, they won't work. They were deceiving because they have a dent down the center, but are still the same height. Nice build you got going there, by the time I get mine done I probably could have bought another m4, but i like to dial in every gun a have to the way I like it, expensive habit!