Lower piece sold! Upper and barrel stabilizer only! Krytac LMG Handguard Keymod all metal. I have the barrel stabilizer? piece as well. Got in a boneyard box and I’ll prolly never use it. I am unfamiliar with this piece so I don’t know how complete it is or what other receiver you could put it on, but I can try to answer your questions best I can. No barrel nut. Price is shipped!