M4E1 Enhanced 16" .300 Blackout Complete Upper Receiver

This Complete Upper includes our Gen 2 Enhanced Handguard! Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a new profile for the picatinny top rail.Includes:M4E1 Enhanced Assembled Upper ReceiverEnhanced Handguard of choice16" .300 Blackout 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 tab M4E1 Upper Features:Forged from 7075 T6 aluminumPrecision machined to M4E1 specsM4 feedrampsMatte black hard coat anodized Mil 8625 Type 3 Class 2Laser engraved T-marks (Anodized only)Comes assembled, with port door and forward assist installedAccepts standard AR15/M16 componentsHandguard mounting platform is forged into the receiverWorks with Aero Precision handguards but also fits most BAR-system handguardsBarrel nut and wrench are includedGen 2 Enhanced Handguard Features:1pc free float designBuilt in anti-rotation tabsScalloped railsContinuous top rail1.78" inside diameter fits most muzzle devices and 1.5" suppressorsCompatible with low profile gas blocksGen 2 Feature - Quick disconnect sling socket at the 3, 6 and 9 o'clock positionsGen 2 Feature - Additional milling along flats to aid with gripping and add visual appealGen 2 Feature - New profile for the continuous picatinny top railBarrel Features:Chamber: .300 BlackoutLength: 16"Material: 4150 Chome Moly VanadiumFinish: QPQ Corrosion Resistant FinishGas System Length: PistolGas Block Journal: .750"Twist Rate: 1:7 InchesMuzzle: 5/8x24 ThreadedWeight: 29ozOther; M4 Feed Ramp Extension, HP and MPI Tested, Standard A2 Flash Hider