I would find a bolt action rifle for the deer hunting, and put on a EOtech 512 on your AR. Look at the all reviews located in the link. If you think your AR is fun now, wait until you shoot it with one of these on there. It is remarkable optic and very simple. Again, look at the reviews. Also, this is a very good price when you add in the discount and if you have to hunt the AR to scratch that itch, the EOtech will help there too.
http://www.midwayusa.com/product/18...circle-with-1-moa-dot-reticle-aa-battery