I have a new Bravo Company M4 Carbine upper. Price is $570 shipped.
From the BravoCompany website:
BCM 16" M4 Carbine Upper Receiver Group:
* M4 Feed Ramp Barrel Extension (USGI)
* M4 Feed Ramp Flat Top Receiver
* T-Marked Upper Receivers
* USGI 1/7 Twist Rates
* USGI 5.56 NATO Chambers
* Mil-Spec 11595E - 4150 Grade Barrel Steel (CMV)
* Chrome Lined Bore and Chamber
* Manganese Phosphate Barrel Finish
* Mil-Spec F-Marked Forged Front Sights
* USGI Government Profile Barrels
* HPT (High Pressure Test) Barrels
* MPI (Magnetic Particle Inspected) Barrels
Please note that no BCG or charging handle are included. Thanks for looking!