I saw that one as well. The only reason I haven't jumped is I just got a Burris 3x9 tac30 from them for my AR-10 about a week ago. Christmas/Birthday play money all gone for now.
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I have seen those 1.5 x 4 illuminated on ar 15's they are a nice comprimise between a close quarters sight and medium range tacticle scope. Even though I'm broke the german recticle model has been in my cart several times too!