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Aero Precision M4E1 Threaded 12.5" 5.56 Carbine Length Complete Upper Receiver w/ ATLAS R-ONE Handguard - Anodized Black - APAR700704M30

MPN: APAR700704M30  |  UPC: 815421028645
$412 24

In Stock


Aero Precision APAR700704M30: This complete upper includes our ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Aero Precison's 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. This complete upper does not include a BCG or Charging Handle. Shop our current in-stock BCG's HERE and Charging Handles HERE.


  • M4E1 Threaded Assembled Upper Receiver
  • 12" M-LOK ATLAS R-ONE Handguard
  • 12.5" 5.56 Government Profile CMV Barrel, Carbine Length
  • Low Profile Gas Block and Carbine Length Gas Tube
  • AR15 A2 Birdcage Flash Hider
  • Product comes assembled

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 R-ONE Handguard Features:

    • Full top picatinny rail for optional attachments
    • 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

12.5" 5.56 CMV Carbine Length Barrel Features:

    • Chamber: 5.56
    • Length: 12.5"
    • Twist: 1 in 7
    • Threading: 1/2"x28
    • Material: Chrome Moly Vanadium
    • Finish: QPQ corrosion resistant finish both inside and out
    • Gas Block: .750
    • Gas System Length: Carbine
    • Weight: 22oz
    • M4 Barrel Extension
    • HP and MPI Tested
Additional No
Country of Manufacture United States
License Requirement None
Manufacturer Aero Precision
Mfg. Part Number APAR700704M30
UPC 815421028645
Caliber/Gauge 5.56x45
Action Semi Automatic
Barrel Length 12.5"
Barrel Twist 1:7
Barrel Bore Type No
Barrel Finish QPQ Corrosion Resistant
Barrel Fluting No
Barrel Profile No
Mount Type No
Beam Color No
Firearm Fit No
Threaded Barrel Yes
Condition New
Free Shipping No

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