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Aero Precision M4E1 Barreled Upper 16" 5.56 Mid-Length, ATLAS S-ONE HG

Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Barreled Upper Receiver w/ ATLAS S-ONE

Our Price: $469.99

Stock Status :(Out of Stock)
Product Code: APAR700304M7


Aero Precision M4E1 Barreled Upper 16" 5.56 Mid-Length Barreled Upper Receiver w/ ATLAS S-ONE

This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

Be sure to use the link below to choose a BCG and charging handle as this upper does not come with either.

Click here for Charging Handles

  • M4E1 Threaded Assembled Upper Receiver
  • ATLAS S-ONE Handguard of choice
  • 16" 5.56 CMV Barrel
  • Low Profile Gas Block and Mid-Length Gas Tube
  • Product comes assembled
The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.
This complete upper does not include BCG or Charging Handle.

ATLAS S-ONE Handguard Features:
  • Front and rear picatinny rail
  • M-LOK Compatible
  • Eliminated center of top rail for weight reduction
  • Indexing grooves in 12:00 position for positive grip control
  • Quick disconnect sling socket at the 3, 6 and 9 o'clock positions
  • Compatible with low profile gas blocks
  • 1.3” Inside diameter
  • 1.5” Outside diameter
  • Compatible with mil-spec AR15 upper receivers and barrels

16" 5.56 Mid-Length Barrel Features:
  • 5.56 NATO 16" Midlength, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
  • .750 gas block journal
  • Mid-length gas system, .0785 gas port
  • M4 Feed Ramp Extension
  • HP and MPI tested
  • Standard A2 flash hider

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