This upper had the barrel replaced with a BCM SS barrel, 1/8 twist. It has a BCM low profile gas block that was pinned on. Troy/Vikings Tactics 11' rail. The rail has a quick disconnect on it. Upper comes with a charging handle and LMT semi-auto BCG. There are zero rounds fired on this upper, may have some small marks from being in the safe.
Price is 900 shipped, 800 without the BCG.