I just purchased one for my AR. My primary optic is an Aimpoint Pro but wanted a magnified scope for shooting metal plates at further distances and the Primary Arms 6X ACSS does quite nicely.
If you can see the "Big Picture" you are not concentrating on your front sight post.
Live life like a dog
If you can't lick it,eat it,chew it or screw it,
Piss on it and walk away