My scoped AR is my primary varmint rifle. Instead of hauling a shotgun along w/my AR, I'm considering mounting a red dot/holo sight on an angle next to my scope for shots inside 60-70yds. I looked online at the Burris Fastfire but it has real mixed reviews. Any others that you guys are using and would recommend? I have no experience w/holographic sights. Want something small. Rifle is a RRA Varmint w/Leupy scope. Pics of the rigs would be great. Thanks