M4E1 7.5" 5.56 Pistol Length Complete Upper Receiver

Aero Precision 7.5" 5.56 Pistol Length Complete Uppers

M4E1 7.5" 5.56 Pistol Length Complete Upper Receiver Product Sku: APPG600211P0

This Upper Receiver Handguard Combo now 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.


  • M4E1 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

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
  • 1.8" 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
Made In America? Yes
Series M4E1
Chamber 5.56 NATO
Barrel Length 7.5"
Weight(s) KeyMod: 38.72 oz / M-LOK: 38.72 oz / Quad Rail: 40.32 oz

Customer Reviews

3 Item(s)

very impressed Review by Ricardo
its perfect (Posted on 12/20/2016)
Top Choice for 7.5" 5.56 uppers!!!! Review by Shayne
All of AP's enhanced uppers are top notch. I own this one its on my AP lower sbr and it is a performer period.
(Posted on 10/15/2016)
Performs! Review by Jimmy
I bought this about 1.5 years ago for a pistol build and have put several hundred rounds through it. I used an AP Nib BCG and it has never failed me. Very impressed with the quality and value of this pkg. (Posted on 7/7/2016)

3 Item(s)

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Finish Your Build
Aero Precision 5.56 Bolt Carrier Group - Side View

5.56 Bolt Carrier Group, Complete

Regular Price: $125.00

Special Price $109.99