I am looking to upgrade my present AR type rifle.
From my research on this site, I have settled on a Colt 6920. Unfortunatley, my local gun shop does no carry the 6920. They do have a couple of Colt 6520.
What is the difference in the two rifles? Should I wait and find a 6920 or is the 6520 so similar that the difference would be negligable.
Thanks for you input.
Greg

