I'm in that mode where I think I'd like to add an Ar-15 to my very small collection. (H & K USP 40 compact) I've been doing my research, willing to pop for a completed rifle, and think I know what features I'm looking for. 5.56 round, 16" barrel, 1/7 or so twist, but from there I'm not sure what else I want. Any input would be greatly appreciated. This thing would most likely collect dust and see occasional range use, but beyond that it's just an 'investment.'