son_of_thunder
300 Blackout Upper - Geissele MK4 rail, Faxon Match SS Barrel, Aero M4 Upper, VG6 Gamma Brake, BCM Gas Block.
This upper is like new. Just test fired, about 20 rounds. Everything torqued to spec and loctite where needed. Asking $550 shipped PayPal FF or G&S and add the fees.