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M4E1 Threaded Complete Upper, 10″ .300 Blackout Barrel, 9″ M-LOK ATLAS S-ONE Handguard

This complete upper includes our new M-LOK ATLAS S-ONE Handguard! The M-LOK 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.

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Description

Includes:

  • M4E1 Threaded Assembled Upper Receiver
  • M-LOK ATLAS S-ONE Handguard
  • 10″ .300 Blackout CMV Barrel
  • Low Profile Gas Block and Pistol 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
  • The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.

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

M-LOK 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

10″ .300 Blackout Barrel Features:

  • Length: 10″
  • Twist: 1 in 7
  • Muzzle: 5/8×24 Threaded
  • Material: 4150 Crome Moly Vanadium
  • Finish: QPQ corrosion resistant finish both inside and out
  • Gas Block: .750
  • Gas Port: .0935
  • Gas System Length: Pistol
  • Weight: 21oz
  • M4 Barrel Extension
  • HP and MPI Tested

Shipping to FFL Dealer Required No
Made In America Yes
Platform AR15
Complete Upper Series ATLAS
Caliber .300 Blackout
Barrel Length 10

Additional information

Finish

Anodized Matte Black, Magpul FDE Cerakote

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