I currently have a Colt post ban AR with the A2 upper and lower. 16" heavey barrel with comp. It has a non-collapsing M-4 Stock on it. I cuttent have a Tasco 5MOA red Dot on top of the carry handlewith see thru mount to utilize the adjustable sites. The problem is using it in 3-gun competition we have targets sometimes out over 200 yrds. While the red dot works well out to 100, it is difficult to hit 8-12 inch steel plates with the dot and my eyes are 'nt that great for opensites that far out.
 I was going to mount a scope on top with the red dot mounted on a side piccanty rail so I would have all 3 possibilites but a friend said it was not a good idea. Said it would make sighting the gun too "busy". Do any of you have this cind of setup and how does it work for you?

trijicon ta-50 w/triangle

LOL, I was gonna try to slip an ACOG past my wife but she freaked when she saw the price...$890...She said hell would freeze 1st!

Do the ACOG!  Don't you have a black budget?  I thought everyone here had access to black funds!

Look for a used one for around $600