I have 2 M4's. One DD with an Aimpoint. The other is a flat top S&W. I just got my burris PEPR QD mount and I was going to put a Nikon P223 3x9 on it with the BDC 600, but there is a 6 week wait on one unless one of you guys knows where one is. This M4 will mostly be used for Hunting and the Range since I have another M4 already set up for personal defense. What scope would you guys go with? Up to 500 bucks but preferably less.