M4E1-T Complete Upper, 18″ .223 Wylde SS QPQ Rifle Length Barrel, 15″ M-LOK ATLAS S-ONE HG

This M4E1 18″ Stainless Steel Complete Upper Has it all, Perfect for your Build, Has everything already to go includes an 15″ M-LOK ATLAS S-ONE Handguard



This complete upper Is Perfectly Made to put you above the rest, it includes our 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.


  • M4E1 Threaded Assembled Upper Receiver
  • 15″ M-LOK ATLAS R-ONE Handguard of choice
  • 18″ .223 Wylde Stainless Steel Barrel, Rifle Length
  • Pinned Low Profile Gas Block and Rifle Length Gas Tube
  • A2 Flash Hider
  • Product comes assembled
  • Made in America
  • Caliber:  .223 Wylde
  • Finished in FDE Cerakote
  • This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons.

M4E1 Threaded Upper Receiver Features:

  • New enhanced forging that gives the upper receiver a “billet look”
  • New picatinny profile that blends seamlessly with our Enhanced Series Handguards
  • M4 Feedramps
  • .250 takedown pin holes
  • Laser engraved T-marks
  • Includes port door and forward assist installed

ATLAS S-ONE Handguard Features:

  • Front and rear picatinny rail
  • 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

18″ .223 Wylde Stainless Steel Barrel, Rifle Length Features:

  • .223 Wylde 18″ Rifle Length Barrel, 1/8 Twist
  • Corrosion Resistant Finish
  • .750 gas block journal
  • Rifle length gas system
  • M4 Feed Ramp Extension
  • HP and MPI tested
  • Standard A2 flash hider

Additional information


Anodized Matte Black, Magpul FDE Cerakote, Matte Black, Stainless Steel


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