I am selling two BCM factory built uppers. One is a BCM® Standard 16" Mid Length (ENHANCED Light Weight) Upper Receiver Group w/ KMR-A13 Handguard . The second is a BCM® Standard 14.5" Mid Length Upper Receiver Group w/ KMR-A13 Handguard that is pinned and welded to make it the legal limit. Both have bcm keymod picatinny rails, qd mounts and are priced for $625 each shipped. Both have about 500 flawless rnds through them. I am only selling because I replaced them with two BCM 14.5 uppers that I pinned and welded dead air flash hiders on to work with my can.