Help me chose one of these sub $300 sights for an AR

[Zerex]

Looking at different optics for an AR, would like to try to keep below $300. Most of my shooting will be out to 100m, maybe 200m if I'm feeling frisky . Here are the candidates:
http://www.barska.com/Red_Dot_Scopes-2x_Tactical_Red_Dot_Sight_w_Multi-Rail_Mount_2.html
http://www.vortexoptics.com/product/vortex-strikefire-red-dot-scope-for-ar15
http://www.bushnell.com/products/scopes/riflescopes/reddot/730132P/
http://www.burrisoptics.com/speeddot135.html
http://www.tasco.com/products/index.cfm?ClassID=13&FamilyID=163&ProductID=673
http://www.mylucidgear.com/reddot.php

Thoughts, comments and other options are appreciated
Thanks

 

[HeavyT]

I was looking at the Bushnell Trophy, in my neck of the woods its $200 plus tax. One I learned about it was since there is no magnification, the red dot is like 3 moa on its own, and at 100 yards, an AR can shoot better than 3 moa, so it might limit your accuracy. I have decided to get a Hilux, (http://www.leatherwoodoptics.com), CMR series.
it has adjustable magnification, down to 0 power, and is almost as easy to quick look through as a red dot. Something to consider. (oh and about $400...)

 

[300Spartans]

I say go for the Bushnell. It looks like an ACOG and I hear they're not bad.

What if you went $50 higher and got yourself a used Aimpoint from the EE?

 

[broncoo]

take a look at nikon aswell they have lots under $300