In past years, there have been some significant engineering and manufacturing advancements with the AR-15 — enough to warrant picking up a wrench and trying them out. The concept to produce a dual role carbine essentially has two requirements:
A long-range platform capable of accurate engagements out to 700 meters and beyond (with quality ammunition), equipped with a quality low power variable optic (LPVO) or similar. The optic must be robust, have a MRAD reticle, and be first focal plane.