Dark mode is

Aero Precision M4E1-T 300BLK Partial Upper Receiver w/ Atlas R-One Handguard - 10" Black

AR-15 Partial Upper Receiver

Out of stock


Aero Precision M4E1-T 300BLK Complete Upper w/ Atlas R-One Handguard - 10" Black

$479.99

This complete upper includes Aeros new ATLAS R-ONE Handguard! The R-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Their 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:

  • Low Profile Gas Block and pistol Length Gas Tube
  • Product comes assembled
  • This complete upper does not include BCG or Charging Handle. 
  • 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 their Enhanced Series Handguards
  • M4 Feedramps
  • .250 takedown pin holes
  • Laser engraved T-marks
  • Includes port door and forward assist installed


ATLAS R-ONE 9" M-LOK Handguard Features:

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


10" .300 Blackout Barrel Features:

  • Length: 10"
  • Twist: 1 in 7
  • Muzzle: 5/8x24 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


Specifications:

  • Platform: AR15
  • Series: ATLAS
  • Caliber: .300 Blackout
  • Barrel Length: 10"
  • Weight: 41.3 oz
More Information
SKU APAR700702M4
Product Type AR-15 Partial Upper Receiver
Manufacturer Aero Precision
Gas Block Diameter .750"
Thread Pitch 5/8x24
Color Black
Gas Length Pistol
Rail Length 9"
Barrel Length 10"
Caliber 300BLK