Aero Precision M4E1-E Complete Upper, 10.5" 5.56 Barrel, Quantum 9" M-LOK HG - Anodized Black

This Complete Upper includes our Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories.Includes:M4E1 Enhanced Assembled Upper ReceiverQuantum Handguard of choice10.5" 5.56 CMV BarrelLow Profile Gas Block and Carbine Length Gas TubeProduct comes assembledThis complete upper does not include BCG or Charging Handle.The 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-marksComes 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 includedQuantum Handguard Features:1pc free float designRemovable 4-slot picatinny rail section for front sightBuilt in anti-rotation tabs7 mounting surfaces for KeyMod accessories1.78" inside diameter fits most muzzle devices and 1.5" suppressorsCompatible with low profile gas blocks10.5" 5.56 Barrel Features:5.56 Nato 10.5" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled.750 gas block journalCarbine length gas system, .0785 gas portM4 Feed Ramp ExtensionHP and MPI testedStandard A2 flash hiderSpecifications:Made In AMERICA: YesPlatform: AR-15Series: M4E1Caliber: 5.56 NATOBarrel Length: 10.5"Weight: 43.04 ozOther: No