Description
Aero Precision M4E1 Enhanced Complete Upper 14.5″ 5.56 Mid-Length Barrel w/ Pinned Epsilon 556SL 12″ M-LOK HG – BlackThis Complete Upper includes Aero’s 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.Aero Precision has taken the pain out of building a legal 14.5″ rifle build. These pinned and welded 14.5″ complete uppers feature an Epsilon 556SL that is permanently affixed to the muzzle providing an overall legal length of 16″. Worried you might want to change your gas block? No worries! The outer diameter of the Epsilon 556SL allows you to easily slide your gas block over the muzzle device making it easy to change or service your gas system.If you’ve had a 14.5″ build planned, but didn’t want to deal with the hassle of getting it pinned and welded or being stuck with a specific configuration, then our 14.5 pinned and welded barrels/uppers are for you!Includes:M4E1 Assembled Upper Receiver12″ Gen 2 Enhanced M-LOK Handguard14.5″ 5.56 CMV BarrelLow Profile Gas Block and Mid-Length Gas TubeVG6 Epsilon 556SL (pinned and welded)Product comes assembledThis complete upper does not include BCG or Charging Handle.The muzzle brake that comes with this complete upper receiver is pinned 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 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 rail14.5″ 5.56 Mid-Length Barrel Features:Chamber: 5.56Length: 14.5″Twist: 1 in 7Threading: 1/2″x28Material: Chrome Moly VanadiumFinish: QPQ corrosion resistant finish both inside and outGas Block: .750Gas Port: .0785Gas System Length: MidWeight: 26ozM4 Barrel ExtensionHP and MPI Tested
