I have a Rock River Arms A2 upper with a Colt 20" HBAR 1/9" barrel. The barrel has less than 100 rounds through it.
It does not have a bayonet lug but does have an threaded A2 style flash hider. The barrel came off of a Colt "blue" label rifle. It is marked "C MP 5.56 NATO 1/9 HBAR"
This is complete with charging handle and complete bolt carrier group.
Everything is brand new (except for about 40 rounds fired) with the exception of the barrel.
I want $
385 $ 375 shipped.
I will take Paypal and pictures are available.