Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 16in Mid-Length Barrel 1-7 Twist 15in ATLAS R-ONE Handguard A2 Flash Hider Cerakote OD Green
$569.99 at OpticsPlanet · 2 stores
In stock Sale
Aero Precision Complete Upper Receiver M4E1-T 5.56 16in M4 Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black
Aero Precision · Upper Receiver
No ratings yetBest price
$579.99at OpticsPlanet
Out of stock Sale checked Oct 23, 2026
In stock now instead
- Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 16in … $569.99at OpticsPlanet
- Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm … $579.99at OpticsPlanet
- Rock River Arms Completed Upper Receiver Predator Pursuit .223 … $577.99at MidwayUSA
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $579.99Salechecked Oct 23, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Similar upper receivers in stock
This part is out of stock at every store we track. These similar upper receivers are in stock, with today's prices.
Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 4.5 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard Vortex Flash Hider Black
$579.99 at OpticsPlanet · 2 stores
In stock Sale
Rock River Arms Completed Upper Receiver Predator Pursuit .223 Wylde 20 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black
$577.99 at MidwayUSA · 2 stores
In stock Sale
Spikes Tactical .223 Rem/5.56 16" Barrel Complete Upper Assembly, Mil-Spec Phosphate Coated, Black M4
$567.00 at OpticsPlanet · 5 stores
In stock Sale
Spikes Tactical .223 Rem/5.56 16" Barrel Complete Upper Assembly, Mil-Spec Phosphate Coated, Black Mid-Length
$598.50 at OpticsPlanet · 5 stores
In stock Sale
Resolute Mk4 5.56 NATO Assembled Upper Rcvr 16.1" Bbl Black
$489.99 at OpticsPlanet · 5 stores
In stock Sale
Price history
Dashed line = out of stock. Tracking since Oct 12, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $579.99 | $579.99 | $579.99 |
Since Oct 12, 2026.
About this part
The Aero Precision Complete Upper Receiver M4E1-T 5.56 16in M4 Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black is an AR-15 complete upper receiver from Aero Precision. One store lists it, OpticsPlanet at $579.99.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Barrel length
- 16" · Handguards
- Handguard length
- 15" · Barrels
Specifications
- Manufacturer
- Aero Precision
- Color
- Black
- Type
- Complete
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
Aero Precision Complete Upper Receiver M4E1-T 5.56 16in M4 Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black. Specifications for Aero Precision M4E1 16in 5.56 ATLAS S-ONE M-LOK Complete Upper Receiver with Flash Hider: Manufacturer: Aero Precision Caliber: 5.56x45mm NATO Overall Length: 26 in Barrel Length: 16 in Barrel Twist Rate: 1-7 Muzzle Device: A2 Flash Hider Gun Model: AR-15 Fabric/Material: 4150 CrMoV Gas Block Journal Size-Diameter: .750 in Handguard Length: 15 in Handguard Style: Quad Rail Gun Rail: M-LOK Gun Type: Rifle Gun Make: AR Platform Barrel Material: 4150 Chrome Moly Vanadium Weight: 48.5 oz Bolt Carrier Group Included: No Charging Handle Included: No Magazine Included: No Condition: New Included Accessories: None Country of Origin: USA Features of Aero Precision M4E1 16in 5.56 ATLAS S-ONE M-LOK Complete Upper Receiver with Flash Hider Laser engraved T-marks Comes assembled with port door and forward assist installed Accepts standard AR15/M16 components Handguard mounting platform is forged into the receiver Works with Aero Precision handguards but also fits most BAR-system handguards 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 Compatible with mil-spec AR15 upper receivers and barrels MLOK attachment points Package Contents: Aero Precision M4E1 16in 5.56 ATLAS S-ONE M-LOK Complete Upper Receiver with Flash Hider M4E1 Enhanced Assembled Upper Receiver 15in ATLAS S-ONE M-LOK Handguard 16in 5.56 HBAR barrel Low Profile Gas Block and Carbine Length Gas Tube Product comes assembled What firearm models does the manufacturer say Aero Precision M4E1 16in 5.56 ATLAS S-ONE M-LOK Complete Upper Receiver with Flash Hider is compatible with? The manufacturer says that Aero Precision M4E1 16in 5.56 ATLAS S-ONE M-LOK Complete Upper Receiver with Flash Hider is compatible with AR-15 M16Aero Precision APAR700305M6: M4E1-T Complete Upper 16in 5.56 M4 Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black
Rating
No ratings yet
Log in to rate this part.
Comments
Please log in to read and leave comments.