Trade Pending****** I have a 5.56/.223 20" HB AR. The Lower is a Bushmaster XM15. I am not sure what the upper is as there are no markings. The rifle functions flawlessly and the trigger is crisp and has no creep. I am looking to trade it for a nice complete AR upper and some $. Let me know what you have. I with throw in 2 mags with the rifle. I am also open to some other trades. Will sell for $800.