Aero Precision M4E1 Complete Upper 10" .300 Blackout Barrel EM-9 Gen 2 Handguard - Anodized Black

Aero Precision M4E1 Complete Upper 10" .300 Blackout Barrel EM-9 Gen 2 Handguard - Anodized BlackThis 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 choice10" .300 Blackout CMV BarrelLow Profile Gas Block and Pistol Length Gas TubeProduct comes assembledThis assembly 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. Per the National Firearms Act, the muzzle brake MUST be pinned and welded to achieve the necessary 16" as defined by the ATF for a rifle build.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 rail10" .300 Blackout Barrel Features:Length: 10"Twist: 1 in 7Muzzle: 5/8x24 ThreadedMaterial: 4150 Crome Moly VanadiumFinish: QPQ corrosion resistant finish both inside and outGas Block: .750Gas Port: .0935Gas System Length: PistolWeight: 21ozM4 Barrel ExtensionHP and MPI TestedSpecifications:Shipping to FFL Dealer Required NoMade In America? YesPlatform AR15Series M4E1Caliber .300 BlackoutBarrel Length 10"Weight(s) KeyMod: 43.20 oz / M-LOK: 43.20 oz / Quad Rail: 44.80 oz