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 MOD4 15 18 Inch 223 Wylde PROOF 5.56x45MM M4E1-T Complete Upper Receiver OD Green
Aero Precision · Upper Receiver
No ratings yetBest price
$1,099.99at 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
- Patriot Ordnance Factory P415 Edge 16.5" Complete Upper 5.56x45… $1,093.19at Kentucky Gun Co
- Mk114 Mod 1-M 223 Wylde 14.5" Bbl Complete Upper Thread Only $1,129.95at Ammunition Depot
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $1,099.99Salechecked 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.
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This part is out of stock at every store we track. These similar upper receivers are in stock, with today's prices.
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Patriot Ordnance Factory Renegade Plus 10.5" Complete Upper 5.56x45mm 1:8, Black
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Price history
Dashed line = out of stock. Tracking since Oct 13, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $1,099.99 | $1,099.99 | $1,099.99 |
Since Oct 13, 2026.
About this part
The Aero Precision MOD4 15 18 Inch 223 Wylde PROOF 5.56x45MM M4E1-T Complete Upper Receiver OD Green is an AR-15 complete upper receiver from Aero Precision. One store lists it, OpticsPlanet at $1,099.99.
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
- 18" · Handguards
Specifications
- Manufacturer
- Aero Precision
- Color
- OD Green
- Type
- Complete
- Platform
- AR-15
- Caliber
- .223 Wylde
From the manufacturer
Aero Precision MOD4 15 18 Inch 223 Wylde PROOF 5.56x45MM M4E1-T Complete Upper Receiver OD Green. 223 Wylde PROOF Barrel. Engineered for excellence this Barrel has undergone rigorous testing to ensure peak performance and unrivaled reliability. Elevate your shooting experience with this precision-crafted complete upper. The MOD 4 Handguard included with this complete upper receiver features a 7 sided M-LOK interface allows the user to customize this upper to their exact specifications and needs. Lastly each of the 4 QD sockets on the MOD 4 utilize a steel liner to ensure a higher shear load and longer service life with the continued use of QD swivels. Specifications for Aero Precision MOD4 15 18 Inch 223 Wylde PROOF 5.56x45MM M4E1-T Complete Upper Receiver: Manufacturer: Aero Precision Caliber: 5.56x45mm NATO Overall Length: 26 in Barrel Length: 18 in Gas System Length: Rifle Length Barrel Twist Rate: 1-8 Firearms Threads Per Inch: 5/8x24 Muzzle Device: A2 Flash Hider Finish: Anodized Gas Block Journal Size-Diameter: .750 in Handguard Length: 15 in Barrel Material: Carbon Fiber Weight: 54 oz Features of Aero Precision MOD4 15 18 Inch 223 Wylde PROOF 5.56x45MM M4E1-T Complete Upper Receiver 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 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 Compatible with mil-spec AR15 upper receivers and barrels Standard A2 Flash Hider Package Contents: Aero Precision MOD4 15 18 Inch 223 Wylde PROOF 5.56x45MM M4E1-T Complete Upper Receiver M4E1 Threaded Assembled Upper Receiver MOD 4 15in Handguard 18in .223 Wylde PROOF Barrel Low Profile Gas Block and Gas Tube Product comes assembled Aero Precision APAR700011D111: MOD4 15 18 Inch 223 Wylde PROOF 5.56x45MM M4E1-T Complete Upper Receiver OD Green
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