M4E1 10.5" 5.56 Barrel Complete Upper Receiver

Aero Precision 10.5" 5.56 Mid-Length Complete Uppers

M4E1 10.5" 5.56 Barrel Complete Upper Receiver Product Sku: APPG600221P2

All options are currently out of stock



  • M4E1 Assembled Upper Receiver
  • Enhanced Handguard of choice
  • 10.5" 5.56 CMV Barrel
  • Low Profile Gas Block and Carbine 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
  • 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

Enhanced Handguard Features:

  • 1pc free float design
  • Rail is Machined from 6061-T6 Aluminum
  • 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

10.5" 5.56 Barrel Features:

  • 5.56 Nato 10.5" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
  • .750 gas block journal
  • Carbine length gas system, .0785 gas port
  • M4 Feed Ramp Extension
  • HP and MPI tested
  • Standard A2 flash hider
Series M4E1
Chamber 5.56 NATO
Barrel Length 10.5"
Weight(s) -

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Finish Your Build
Aero Precision AR15 Charging Handle

AR15/M4 5.56 Charging Handle

Regular Price: $19.99

Special Price $15.99