[falconer]

I'm building up a 16" flattop AR. I've narrowed it down to these two optics (poor college student). What are the pros/cons of each? Does the Kobra co-witness with the front sight on an AR?

[Engineer]

The Kobra is a bit bulkier, but it does have different reticle patterns so you can pick one that suits you (the chevron with dot makes target acquisition very fast). Unfortunately, it will be too tall to cowitness with your iron sights. Haven't hadd too much experience with the OKO but I've shot an AR with one and it worked fine.