I have an AR and I am looking to trade it strait up for a Kel Tech KSG or ACR. I have a Stagg upper (gas piston) on a Spikes lower. It has stock trigger and a Battlecomp BC 1 brake. It has a telescoping stock, removable weapons light (safariland) with a Magpul AFG. It also comes with a MagPul BAD lever, BCM Gunfighter Charging Handle (medium). The upper has the Stag quad rail that came with the it, and the gas system is adjustable for a suppressor. It's a 16" barrel with a 1/9 twist. The rifle runs great, has been well maintained. It is definetly not a safe queen, but a true battle rifle and looks and runs like it. Everything I mentioned comes with the rifle (except the ACOG), it also comes with MI B.U.I.S. front and rear.
I will ship if you are willing to ship, and I am in the Santa Clarita Area.