Aero Precision M4E1-T Complete Upper, 13.9" 5.56 CMV Mid-Length Barrel, 12.7" ATLAS R-ONE MLOK HG - Anodized Black

SKU: APAR700704M99
Fully Assembled and Warrantied by Aero Precision
$432.00

In stock

Ballistic Advantage Authorized DealerAero Precision Authorized Dealer

Aero Precision M4E1-T Complete Upper, 13.9″ 5.56 CMV Mid-Length Barrel, 12.7″ ATLAS R-ONE MLOK HG – Anodized Black

The Aero Precision Complete Upper Receiver epitomizes speed, efficiency, and dependability for fashioning a semi-custom AR15 rifle. Crafted with meticulous precision, this 5.56 NATO M4E1 Threaded Complete Upper boasts a 13.9″ Mid-Length barrel and a 12.7″ ATLAS R-ONE handguard. Meticulously machined, comprehensively assembled, and subject to rigorous test-firing by skilled Aero Precision armorers, it guarantees unparalleled performance.

* NFA Rules apply for this item.
* The muzzle device is NOT pinned nor welded to the barrel.
* Does not include Bolt Carrier Group or Charging Handle.

Includes:

  • M4E1 Threaded Assembled Upper Receiver – Anodized Black
  • 12.7″ M-LOK ATLAS R-ONE Handguard – Anodized Black
  • 13.9″ 5.56 NATO Mid-Length Barrel
  • Low-profile Gas Block and Gas Tube
  • Standard A2 Flash Hider

M4E1 Threaded Upper Receiver Features:

  • New enhanced forging gives the upper receiver a “billet look.”
  • M4 Feed ramps
  • .250 takedown pin holes
  • Laser engraved T-marks
  • Includes port door and forward assist installed

ATLAS R-ONE Handguard Features:

Aero Precision’s ATLAS attachment system is a secure and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

  • Continuous top Picatinny rail
  • 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

5.56 NATO Barrel Features:

  • 5.56 NATO 1/7 twist, 4150 CrMoV, QPQ finish
  • .750 gas block journal
  • Mid-Length gas system
  • M4 Feed Ramp Extension
  • HP and MPI tested

Product Information

Manufacturer

Aero Precision

Made in USA

Yes

Platform

AR15

Caliber

5.56 NATO

Attachment Type

M-LOK

Coating Type

Anodized Black

Color

Black

Barrel Length

13.9"

Gas System

Mid-Length

Barrel Finish

QPQ Nitride

Muzzle Thread

1/2×28

Material

4150 Chrome Moly Vanadium, 6061-T6 Aluminum

Compatibility

Standard AR15 components

Part Type

Upper Receiver Parts

Gas Block Diameter

.750

Series

ATLAS

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