When someone asks me what AR to buy, there are two questions I always ask back: What are you intending to use the gun for, and what is your budget?If the answer to the first question is “working as a military contractor in a war zone,” then the answer to the second question should be high.However, for many people, an AR will perform some combination of duties like coyote blaster, soda can hunter, carbine class tool, and home defense gun.