Buy your Aero Precision M4E1 Complete Upper from BattleHawk Armory today!The Aero Precision M4E1 Complete Upper in Anodized Black is a high-quality and ready-to-install upper receiver assembly for your AR-15 rifle. This complete upper includes a 16" 5.56 Mid-Length Barrel and a 15" Enhanced Gen 2 Handguard, offering a reliable and versatile platform for various shooting applications. The 16" 5.56 Mid-Length Barrel is crafted with precision and features a mid-length gas system, providing a balance between maneuverability and enhanced reliability. The barrel is made from high-quality materials, ensuring durability and consistent accuracy. The 15" Enhanced Gen 2 Handguard offers a sleek and ergonomic design, providing ample space for accessories and attachments. It allows for easy customization and offers excellent heat dissipation during extended shooting sessions. The Aero Precision M4E1 Complete Upper in Anodized Black is built to MIL-SPEC standards, ensuring compatibility with a wide range of AR-15 components. With its durable construction and precise fit, it provides a reliable and solid upper assembly for your rifle build. Whether you're a competitive shooter, a home defender, or a recreational enthusiast, the Aero Precision M4E1 Complete Upper with a 16" 5.56 Mid-Length Barrel and a 15" Enhanced Gen 2 Handguard in Anodized Black offers the performance, versatility, and aesthetics you need for a top-notch AR-15 rifle.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 rail16" 5.56 Mid-Length Barrel Features:5.56 Nato 16" Midlength, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled.750 gas block journalMidlength gas system, .0785 gas portM4 Feed Ramp ExtensionHP and MPI testedStandard A2 flash hider