Well upper is not selling so will part it out and sell a Noveske SS 300 BLK barrel that is painted black with a Spikes Nitride BCG and gas block and gas tube. Barrel has maybe 100 rounds down it if that. Shoots great just purchased another 16 and do not need 2. Looking to get 400.00 obo. Barrel retails for 455.00 then toss in the BCG..... Might trade or a decent 5.56 barrel and cash just let me know what you have.