Aero Precision M4E1-T Complete Upper, 14.5" 5.56 Mid-Length Gov Profile Barrel, 13.5" MOD 4 Handguard - Kodiak Brown Anodized

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.