I got to visit a friend today. He, myself, my daughter, his neighbor & his neighbors wife all took turns shooting. I got to shoot some really nice guns & use some really nice optics. 2 or 3 of the AR-s there were outfitted with Tru-Glo 1-6x24 scopes. While inexpensive these scopes have interchangeable turret caps to make elevation adjustments for .223 or .308 out to 1000 yards. They also have illuminated reticles & only cost $159. Unfortunately the way my AR-15 is sat up I don't think it would scope well.(it is a M-forgery with that A2 style pinned front sight). Later on I may have to get another upper & one of these scopes.