BCM upper with a 14.5” carbine gas socom profile barrel. These are highly regarded as exceptionally accurate barrels. Has a Knights Armament MRE (Modular Rail Extension) handguard that is very rare and can be $500-600 by itself. The 3 knights rail covers, stubby tangodown QD grip, and forward controls keymo compatible muzzle device are all included. Does not include BCG, charging handle, or rear sight. The handguard does have some wear marks and is missing one screw on the left hand side of the rail extension so I am only looking for $850 cash, no trades. Text 21095468twotwo if interested.