I've got a Colt 20" HBAR upper with a flash hider, but no bayonet lug. It's brand new, never fired since it came from the factory, complete with bolt, carrier and charging handle. 1/7 twist, large pin, grey finish. It's in perfect condition......A2 sights too.
I'm asking $450 plus shipping for it. If you have to have post ban type, you can put on muzzle break instead.
Let me know...email me. Thanks