Kinda digging the Burris MTAC
http://www.midwayusa.com/product/64...x-24mm-illuminated-ballistic-cq-reticle-matte
I just put one on my 300 blackout. I like it thus far.
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Kinda digging the Burris MTAC
http://www.midwayusa.com/product/64...x-24mm-illuminated-ballistic-cq-reticle-matte
Leupold VX-R Patrol 3-9. 30MM tube, Firedot illumination, Mil reticle/.1 mil turrets, and right in your price point...heck, I paid $525 used with an ADM mount for mine.
My take: 1-4's are a waste. Not enough magnification to really be useful and you give up uber much field of view and speed over a 1X red dot like an Aimpoint. The 3-9 VX-R with the firedot turned on works like an ACOG on 3X, but you also have the ability to dial up to 9X on the top end. Useful reticle as well as easily adjustable turrets.
ETA: if you don't want to wait/shop around, the Leupold Mark AR Mod 1 is similar enough to get the job done for about $150 less. You're giving up a 30mm tube for a 1", getting a green Firedot vs red, and giving up a little glass quality.