FN 16" 5.56 mid length upper. Mloc rail, chf chrome lined barrel (same as the M249 barrels) with mid length gas system all factory from FN. Bcm mod3 vertical grip, Bird cage flash hider hand tightened just to protect threads. NO BCG OR CH. can include trijicon MRO for the right trade or cash offer. I do not have a BCG or CH to go with it. Cash and trade offers welcome 803-603-888 Eight