Ive been tossing around the Idea of doing another AR over the summer but really cant pin down what Id want. Well because thats what the disease does, its makes you want to have a safe full of them. I already have a 16" carbine in .223, and I have my Bench rest AR also in .223. what other calibers should I consider? Will probably go with another 16" gun, but I guess mainly hung up on caliber and possible configuration. The gun will be for... well shooting. Maybe a platform and caliber that I could put on a red dot and go, or change over to scope an put a bipod on the from and shoot it off the bench as well. So what do you guys think?