Originally Posted By JeffCsr: I think I've settled on this one, the only other I'm considering is the Bushmaster M4A3.
My question is with the RRA UTE upper, am I limited to only the Eotech sight or can others (like Aimpoint) be mounted on the UTE rail?
The UTE will work with an Aimpoint or EOTech. The thing to remember is that you are ALWAYS stuck with a fixed BUIS so you cannot run an ACOG or a SCOPE. I would never buy something that limited my options (as you will ALWAYS change your mind on gear).
I at one time liked front sight towers and fixed rear sights. The reason I thought was if my primary optic went down then I have my BUIS's already up and ready for action. What I was giving up was FOV (just didn't realize it). After taking some carbine courses, I have changed my opinion on this subject and run flip up front and rear sights. I want as little as possible in my FOV. Remember that your Aimpoint/EOTech can be used as a sighting tool to make center mass hits out to 50yds.