Looking for some recommendations for a new scope for my AR. It's a 16" bushmaster, RRA 2 stage trigger, free float. I am after something that will give me 500 yd coyote low light precision but that still has lower magnification for fast, close range stuff. Also trying to keep the whole setup relatively light and compact, so probly no 50mm. My budget is sub $400, could be illuminated but must function w/o batteries. Also I prefer some type of BDC reticle. Thanks for your help. My rifle is wearing an eotech currently but I feel like I need some magnification.