M5 18" .308 SS Fluted Complete Upper Receiver w/ ATLAS S-ONE Handguard

$719.99 - $744.99
Out of stock

This complete upper 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.


  • M5 (.308) Threaded Assembled Upper Receiver
  • 15" M-LOK ATLAS S-ONE Handguard
  • 18" .308 Fluted Stainless Steel Barrel, Rifle Length
  • Low Profile Gas Block and Rifle Length Gas Tube
  • .308 A2 Birdcage Flash Hider
  • 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
  • M5 Assembled Upper Receiver Features:

    • Forged from 7075 T6 aluminum
    • M4 Feedramps
    • .2795 takedown pin holes
    • Laser engraved T-marks
    • DPMS High Profile (.210) Tang)
    • Includes port door and forward assist

    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
    • Learn More about our NEW ATLAS S-ONE Hanguards

    18" .308 Fluted Stainless Steel Barrel, Rifle Length Features:

    • .308 Winchester 18" Barrel, 1/10 twist, 416R Stainless Steel, gas port drilled
    • .750 gas block journal
    • Rifle length gas system
    • M4 Feed Ramp Extension
    • HP and MPI tested
    • Standard .308 A2 flash hider
Shipping to FFL Dealer RequiredNo
Made In America?Yes
Caliber.308 Winchester
Barrel Length18"
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