there are so many optics choices. and many good ones have been listed here. decide what you want it to be capable of, and determine your max cost. a good nikon scope can be had under 300. or a good RDS for 400 and less. then theres always a true acog.
I have been a silent witness
to all of America's finest hours.
But my finest hour comes
when I am torn into strips and used as bandages
for my wounded comrades on the battlefield,
When I fly at half-mast to honor my soldiers,
Or when I lie in the trembling arms
of a grieving mother
at the graveside of her fallen son.