Aero Precision M4E1-T 16" 5.56 Midlength R-ONE Complete Upper - ODG Anodized

Aero Precision M4E1-T 16" 5.56 Midlength R-ONE Complete Upper - ODG AnodizedThis complete upper includes Aero Precision's new ATLAS R-ONE Handguard on their billet-style threaded M4E1 upper. R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. The proprietary ATLAS attachment system is a very durable and an extremely dependable mounting platform that provides a trim profile without sacrificing the strength and stability customers have grown to love from Aero Precision handguards. This complete upper does not include BCG or Charging Handle.Includes:M4E1 Threaded Assembled Upper ReceiverATLAS R-ONE Handguard of choice16" 5.56 CMV BarrelLow Profile Gas Block and Mid Length Gas TubeProduct comes assembledM4E1 Threaded Upper Receiver Features:New enhanced forging that gives the upper receiver a "billet look"New picatinny profile that blends seamlessly with our Enhanced Series HandguardsM4 Feedramps.250 takedown pin holesLaser engraved T-marksIncludes port door and forward assist installedATLAS R-ONE Handguard Features:Full top picatinny rail for optional attachmentsQuick disconnect sling socket at the 3, 6 and 9 o'clock positionsCompatible with low profile gas blocks1.3" Inside diameter1.5" Outside diameterCompatible with mil-spec AR15 upper receivers and barrels16" 5.56 CMV Barrel Features:Chamber: 5.56Length: 16"Twist: 1 in 7Threading: 1/2"x28Material: Chrome Moly VanadiumFinish: QPQ corrosion resistant finish both inside and outGas Block: .750Gas Port: .0785Gas System Length: Mid-LengthM4 Barrel ExtensionHP and MPI TestedA2 Flash-hider