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

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.

Includes:

• • 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 barrel

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