Aero Precision M4E1 Enhanced 7.5" 5.56 Pistol Length Complete Upper Receiver

Aero Precision M4E1 Enhanced 7.5" 5.56 Pistol Length 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 Receiver
    • Enhanced Handguard of choice
    • 7.5" 5.56 Pistol Length CMV Barrel
    • Low Profile Gas Block and Pistol Length Gas Tube
    • Product comes assembled
    • This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab
    • The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel
  • Features

    M4E1 Upper Features:

    • Forged from 7075 T6 aluminum
    • Precision machined to M4E1 specs
    • M4 feedramps
    • Matte black hard coat anodized Mil 8625 Type 3 Class 2
    • Laser engraved T-marks (Anodized only)
    • Comes assembled, with port door and forward assist installed
    • Accepts standard AR15/M16 components
    • Handguard mounting platform is forged into the receiver
    • Works with Aero Precision handguards but also fits most BAR-system handguards
    • Barrel nut and wrench are included

    Gen 2 Enhanced Handguard Features:

    • 1pc free float design
    • Built in anti-rotation tabs
    • Scalloped rails
    • Continuous top rail
    • 1.78" inside diameter fits most muzzle devices and 1.5" suppressors
    • Compatible with low profile gas blocks
    • Gen 2 Feature - Quick disconnect sling socket at the 3, 6 and 9 o'clock positions
    • Gen 2 Feature - Additional milling along flats to aid with gripping and add visual appeal
    • Gen 2 Feature - New profile for the continuous picatinny top rail

    7.5" 5.56 Pistol Length Barrel Features:

    • Chamber: 5.56
    • Length: 7.5"
    • Twist: 1 in 7
    • Threading: 1/2"x28
    • Material: Chrome Moly Vanadium
    • Finish: QPQ corrosion resistant finish both inside and out
    • Gas Block: .750
    • Gas System Length: Pistol
    • Weight: 17.25oz
    • M4 Barrel Extension
    • HP and MPI Tested