Re: I need a new optic for my AR
I owned a 2-12 IOR and it was a boat anchor. This $1300 scope also had, as IOR admitted "issues with their 6 multiplier scopes". The sight picture looked you were looking through a coke bottle from 2-4.5x and again at 9.5-12x. IOR told me, "...But you didn't buy this scope to run at low power, did you buddy? Just enjoy it."
I have the NXS 2.5-10 on an AR-10T with short barrel, and like the Leupold 1.5-5x SPR mk4 for the .223. Mine is a 600yd rifle, with a fast twist barrel, but is 75gr match ammo really that far reaching? I can shoot 90gr bullets, loading singly and am comfortable with A2 or optic.
The Leupold is fast has a cam dial, gives 5 different aiming points on the reticle and can be shot with BAC w/Butler Creek lens cap down and illum on.
The Leupold 4.5-14 is also a good scope for an AR. My son has a 3-9x 50mm Leupold Euro on his Armalite M15. My vote is for as light and versatile as you can find/afford if you will carry your AR afield.