Aero Precision M4E1-T Complete Upper, 14.5″ 5.56 Mid-Length Gov Profile Barrel, 13.5″ MOD 4 Handguard – Kodiak Brown
The Aero Precision M4E1-T Complete Upper, 14.5″ 5.56 Mid-Length Gov Profile Barrel, 13.5″ MOD 4 Handguard – Kodiak Brown is a premium upper assembly designed for AR-15 enthusiasts seeking a balance between maneuverability and performance. Finished in a distinctive Kodiak Brown anodization, this upper combines aesthetic appeal with functional excellence.
At its core is a 14.5-inch government profile barrel chambered in 5.56 NATO, constructed from 4150 Chrome Moly Vanadium steel and treated with a QPQ corrosion-resistant finish. The mid-length gas system offers smoother recoil and reliable cycling, enhancing the shooting experience. The 1:7 twist rate ensures optimal stabilization for a wide range of bullet weights, making it versatile for various applications.
The 13.5-inch MOD 4 M-LOK handguard provides ample space for accessory attachment while maintaining a lightweight profile. Machined from 6061-T6 aluminum, it features a 7-sided M-LOK interface, allowing for customization to meet specific needs. The handguard’s design focuses on stiffness to reduce deflection under load, and it attaches to the upper receiver via a steel barrel nut, minimizing point-of-impact shift when using laser aiming devices.
This complete upper includes the M4E1 threaded upper receiver, port door, and forward assist installed. It does not come with a bolt carrier group or charging handle, allowing users to select components that best fit their build preferences. The muzzle device is not pinned or welded; per the National Firearms Act, it must be pinned and welded to achieve the necessary 16″ overall length for a rifle build.
*Bolt carrier group and charging handle not included.
Product Information
| Product Type | Upper Receiver, Complete Upper |
|---|---|
| Material | 4150 Chrome Moly Vanadium, 7075-T6 Aluminum |
| Muzzle Thread | 1/2×28 |
| Handguard | 13.5" M-LOK |
| Series | M4E1, MOD 4 |
| Manufacturer | Aero Precision |
| Platform | AR15 |
| Color | Kodiak Brown |
| Finish | Anodized |
| Caliber | 5.56 NATO |
| Length | 14.5" |
| Gas System | Mid-Length |
| Twist Rate | 1:7 |
| Barrel Finish | QPQ Nitride |
| Compatibility | Standard AR15 components |
| Made in USA | Yes |
Important!
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