I know someone running "Daniel Defense 1 O'Clock Offset Rail"
That can be mounted at 11 O'Clock or 1 O'Clock
He's out of em right now but i seen a great price at Primary Arms for them.
http://www.primaryarms.com/product.s...&categoryId=88
I see what you mean by they might be to close together to get a good sight picture. (if your talking about getting 2 mounts, and running both front and rear BUIS')
If so i would think the cost of 2 mounts and front and rear BUIS or MBUS's
would be far more than just getting one mount and a primary arms red dot or bushnell red dot.
For those who don't understand why or how this set-up works i seen an awesome vid of Jerry Miculek.
http://www.youtube.com/watch?v=xBwDCbybnCA

