Aero Precision M4E1 Threaded Complete Upper 8 5.56 Barrel, 7.3 M-Lok Atlas S-One Handguard Anodized Black
This complete upper includes our ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.Includes:M4E1 Threaded Assembled Upper Receiver7.3a ^2 ATLAS S-ONE Handguard of choice8a ^2 5.56 Pistol Length CMV BarrelLow Profile Gas Block and Pistol Length Gas TubeProduct comes assembledThis complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tabThe muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.M4E1 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 S-ONE Handguard Features:Front and rear picatinny railEliminated center of top rail for weight reductionIndexing grooves in 12:00 position for positive grip controlQuick 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 barrelsLearn More about our NEW ATLAS S-ONE Hanguards8a ^2 5.56 Pistol Length Barrel Features:Chamber: 5.56Length: 8a ^2Twist: 1 in 7Threading: 1/2a ^2x28Material: Chrome Moly VanadiumFinish: QPQ corrosion resistant finish both inside and outGas Block: .750Gas System Length: PistolWeight: 17.76 ozM4 Barrel ExtensionHP and MPI TestedSpecifications:Shipping to FFL Dealer Required NoMade In America? YesPlatform AR15Series ATLASCaliber 5.56 NATOBarrel Length 8a ^2
