Buy from Amazon.com : http://fave.co/19qJP8r
Bushnell AR Optics 6 MOA Red Dot Reticle Riflescope with Tactical Rings 1x28mm
Product Description :
6 MOA Red Dot reticle 1x magnification 28mm objective
Includes 30mm rings for proper mounting height on AR-15s and other tactical rifles and shotguns
11 brightness settings and a wide field of view
Brilliant multi-coated optics to deliver the ultimate confidence boost in low light