Aero Precision M4E1-T Complete Upper 13.9" 5.56 CMV Mid - APAR700704M99

This is a complete AR-15 upper receiver assembly featuring a 13.9" chrome moly vanadium barrel with a mid-length gas system and integrated M4E1 threaded upper receiver. It includes Aero Precision's ATLAS R-ONE handguard with their proprietary ATLAS attachment system for a slim profile with mounting versatility.