I have a hk 416 upper handguard and brn4 barrel with barrel nut for trade. I am looking for a old bushmaster in 20 inch a2 or an armilite 20 inch. A2 is le marked would be preferred. Last would be an anderson disapator with optic of cash. For the right rifle I can ad a e1 stock and 416 mag My email is Chibitodd@gmail.com