If you put a magnifier behind an EOTech, I don’t see where you would put a back up iron sight. Your pocket, with quick releases on both?
Not sure, and good point.
I guess you’d need a really looooong top rail.
ixnay on the quick releases, I’m thinking.
I've seen some troops without a flip-up BUIS mount the entite top carry handle and rear sight assembly on the bottom handguard rail of their M4s/M16A3s, just in case their day optic went south.
It looks a little clunky, and I'd have some doubts about how close to zero the handle is when it goes back on, but hey, if that's what you're issued and it's the best you can go with, go with it.