Ready to buy a scope for my AR and need your opinion!

[tvfreakazoid]

I'm finally ready to buy a budget scope for my ar15. I don't know much about scopes other than what I've read. I don't have any experience with them on rifles so, this will be the first for me. I have a couple of links to optic planets website.
I would like your "expert"opinion on the 2 scope that I'm looking to buy. They have specs on both the scopes on the website and it would be super duper nice if you guys can tell me the pros and cons between the 2 scopes.
On the redfield spec: Elevation Adjustment Range (MOA): 56
Windage Adjustment Range (MOA): 56 What does this mean? Is this good? How is this comparable to the Nikon prostaff?

Also what about the eye relief? Which one is better between the 2?

Redfield Revolution: Is the accu-range really needed?
redfield revolution scope

Nikon ProStaff: Is BDC rectile really needed?
Nikon prostaff scope

To mount the scope on to my ar i'm looking into buying the Leupold Quick Release Weaver Style QRW Rings: Quick Release Weaver Style Rings 30MM Low Gl or MT. I don't know what the difference between the GI or MT?.
In your opinion is the 30mm mount to low? Or should I stick with the 1" mount?
What do you guys think about this mount?

Leupold QR weaver style rings

Also i'm i would like to get this as well:
Butler Creek Flip-Open Scope Covers:
Butler creek

If there is any other suggestions of brand of scopes similar to what i want would be great to.

Thanks.