Aero Precision M4E1-T Atlas R-One Complete Upper Receiver 5.56mm NATO 11.5" Barrel Flat Dark Earth

Aero Precision M4E1-T Atlas R-One Complete Upper Receiver 5.56mm NATO 11.5" Barrel Flat Dark Earth

This complete upper includes Aero Precision’s 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. The Aero 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. These complete uppers do not include BCG or Charging Handle.

Includes:

M4E1 Threaded Assembled Upper Receiver
ATLAS R-ONE Handguard of choice
11.5" 5.56 CMV Barrel, Carbine Length
Low Profile Gas Block and Carbine Length Gas Tube or Mid-Length depending on barrel length
Product comes assembled
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
ATLAS R-ONE Handguard 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
Barrel Features:

5.56 Nato 11.5" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled OR
Government Profile
.750 gas block journal
Carbine OR Mid-Length gas system depending on Barrel Length
M4 Feed Ramp Extension
HP and MPI tested
Standard A2 flash hider