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This Upper Receiver Handguard Combo now includes the 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.


  • M4E1 Enhanced Assembled Upper Receiver
  • Gen 2 Enhanced Handguard of choice
  • Ballistic Advantage 16" 5.56 Mid-Length CMV QPQ Barrel
  • Aero Precision Low Profile Gas Block
  • Melonite Mid Length Gas Tube
  • Product comes assembled
  • This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons.

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
  • 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
  • 1.72" inside diameter fits most muzzle devices and 1.5" suppressors
  • 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

Ballistic Advantage 16" 5.56 Modern Mid-Length Barrel Features:

  • Sub-Moa Accuracy with Match Grade Ammunition
  • 5.56 Nato 16" Modern Mid-length, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
  • .750 gas block journal
  • Midlength gas system, .0785 gas port
  • M4 Feed Ramp Extension
  • HP and MPI tested
  • Standard A2 flash hider
Bolt Carrier Group and Charging Handle are additional and are offered at a discounted price. Add a Toms Tactical Black Nitride Bolt Carrier Group and 7075-T6 Charging Handle for $89.95.  Bolt carrier group and Barrel will be headspaced to ensure a perfect match.

I am very happy with this upper. It mated perfectly with my PSA lower, and has a quality feel to it. Shot it for the first time today and was pleased with my groups.


The fit and finish is nicely done. Barrel is nicely fitted and with Gorilla Ammunition 223 REM 69gr Sierra Matchking is my favorite match grade ammo and like the description sub-MOA is definitely seen with match grade ammo, well for Gorilla Ammunition that is.

Receiver kind of has this billet look, but it is forged, not billet.

QD mounts are also very sturdy. The top rail is continuous due to the design of the upper and handguard. I love this feature since I have literally unlimited and uninterrupted rail space for optics and/or devices, ie Tape switch mounts(Cloud Defensive's LCS Mk. 2. The MLOK slots are very sturdy and where you need them.

I love this complete upper and may use this same M4E1 complete upper, but try to get it for a future SBR build. I love that the rail is continuous with how the upper and handguard is designed. Oh and yes, it's not too heavy either compared to my friend's BCM 16" RECCE AR in FDE.


Put it on my disaster ar15

A lot smoother and tighter to the lower receiver

No complaint


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Aero Precision M4E1 16" 5.56 Mid-Length Upper Receiver Assembly Gen 2 Rail

  • Product Code: APAR640251M7-BA
  • Availability: Out Of Stock
  • $449.95
  • Free Shipping

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