This is a complete factory BCM upper receiver group with the exception of the gas block which was upgraded to a Superlative Arms adjustable block. The BCG is one of their limited run "blems" with only a mag through it.
I am selling it as you see it for $650.
𝗧𝗲𝘅𝘁 (𝗰𝗮𝗹𝗹𝘀 𝘄𝗶𝗹𝗹 𝗯𝗲 𝗶𝗴𝗻𝗼𝗿𝗲𝗱) 𝟱𝟭𝟮 𝟵𝟱𝟯 𝟳𝟲𝟵𝟮. Meetup at 𝗔𝗰𝗮𝗱𝗲𝗺𝘆 𝗼𝗻 𝟭𝟬𝟰𝟭𝟰 𝗚𝘂𝗹𝗳 𝗙𝘄𝘆 nowhere else. No shipping and no electronic payment. Face to face cash