Patrick
The ACOG is great for accurate shots at medium to long range and can also be used for accurate shots at close range to with both eyes open. (You should always be going both eyes open with this optic though). The RMR on the top is great for close range rapid target acquisition and shooting under NVG's. The best part about the entire setup to me is the fact that is is still very light weight and durable. My rifle was already a 16 in with a quadrail, flashlight, Laser Aiming Module, and an RC2. Adding an LPVO/RMR combo would've made the gun borderline unwieldy. This solved the problem. 10/10
