These are a great option for an AR. I have this particular one as well as the SkullTac which just has a cool coating with skulls all over it. I've had great results from both of them and no issues.
The batteries will die if you forget to remove them at the end of a range day. Aside from that, all solid!
Hate to break it to the cult, I'll take this over anything Vortex has in this class of optic. Don't be surprised!