Aero Precision 5.56 NATO M4E1 ATLAS S-ONE Complete Upper
$434.99 – $514.99
Fully Assembled and Warrantied by Aero Precision
- Description
- Additional information
- All NFA/ATF Rules Apply
- Reviews
- Questions & Answers
Description
Aero Precision 5.56 NATO M4E1 ATLAS S-ONE Complete Upper
Available in 10.5″ Carbine or 16″ Mid-Length
Aero Precision 5.56 NATO M4E1 ATLAS S-ONE Complete Upper is the most efficient way to assemble your own custom firearm; fully assembled and warrantied by Aero Precision. The S-ONE handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Aero Precision’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.
*NFA Rules apply for the 10.5″ barreled model.
**The muzzle devices are NOT pinned nor welded to the barrel.
***Does not include Bolt Carrier Group or Charging Handle.
M4E1 Threaded Upper Receiver Features:
- New enhanced forging that gives the upper receiver a “billet look”
- M4 Feedramps
- .250 takedown pin holes
- Laser engraved T-marks
- Includes port door and forward assist installed
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
5.56 Barrel Features:
- Select between a 10.5″ Carbine or 16″ Mid-Length barrel
- 5.56 NATO 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
- .750 gas block journal
- Carbine length gas system (10.5″) | Mid-Length Gas (16″)
- .0785 gas port
- M4 Feed Ramp Extension
- HP and MPI tested
- Standard A2 flash hider
Choose between 2 Configurations:
APAR700302M2 / APAR700312M2 – 10.5″ Carbine w/ 9″ ATLAS S-ONE MLOK
APAR700305M7 / APAR700315M7 – 16″ Mid w/ 15″ ATLAS S-ONE MLOK
Also available with the ATLAS R-ONE Handguards
Includes:
- M4E1 Threaded Assembled Upper Receiver
- M-LOK ATLAS S-ONE Handguard
- 10.5″ or 16″ 5.56 CMV Barrel
- Low Profile Gas Block and 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.
Product Information
Manufacturer: Aero Precision
Brand: Aero Precision
SKU: APAR700302M2 | APAR700312M2 | APAR700305M7 | APAR700315M7
Assembled: Yes
Finish: Anodize | Cerakote
Color: Black | FDE
Caliber: 5.56 NATO
Platform: AR15
Complete Upper Series: ATLAS
Handguard Dims: OD: 1.5″ | ID: 1.3″
Handguard Type: M-LOK
Gas Block Diameter: .750
Muzzle Device: A2 Flash Hider
Muzzle Threads: 1/2×28 TPI
Barrel Length: 10.5″ | 16″
Barrel Finish: QPQ Melonite
MSRP: $434.99 to $514.99
Arm or Ally is a stocking dealer for all Faxon Firearms, Ballistic Advantage, Rosco Manufacturing, Aero Precision, Toolcraft, Elftmann Tactical, HIPERFIRE and more. See our growing inventory of AR Parts and Reloading Components.
Additional information
| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Barrel Length | 10.5", 16" |
| Manufacturer | Aero Precision |
| Gas System | Carbine, Mid-Length |
| Gas Block Diameter | .750 |
| Muzzle Thread | 1/2 x 28 |
| Caliber | 5.56 NATO |
| Color | Black, FDE |
You may use the 10.5″ Completed Upper with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.
