Aero Precision M4E1 Threaded 16" .223 Wylde Fluted Complete Upper Receiver with ATLAS R-ONE Handguard - Anodized Black

Aero Precision M4E1 Threaded 16" .223 Wylde Fluted Complete Upper Receiver with ATLAS R-ONE Handguard - Anodized BlackThis complete upper includes Aero Precision's new ATLAS R-ONE Handguard! The 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. Aero Precision's 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. This complete upper does not include BCG or Charging Handle.Includes:M4E1 Threaded Assembled Upper Receiver15" ATLAS R-ONE Handguard16" .223 Wylde Fluted Mid-Length Stainless Steel 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" .223 Fluted Stainless Steel Mid-Length Barrel Features:.223 Wylde 16" Mid-Length Barrel, 1/8 Twist416R Stainless SteelBead Blasted Finish.750 gas block journalMid-length gas systemM4 Feed Ramp ExtensionHP and MPI testedStandard A2 flash hiderALL NEW Fluted DesignBarrel Weight: 27 oz