Aero Precision M4E1-T Complete Upper, 14.5″ 5.56 Mid-Length Gov Profile Barrel, 13.5″ MOD 4 Handguard – Black
The Aero Precision M4E1-T Complete Upper, 14.5″ 5.56 Mid-Length Gov Profile Barrel, 13.5″ MOD 4 Handguard – Black delivers a dependable mid-length setup for duty use, training, or advanced home defense builds. Built around the robust M4E1 enhanced upper receiver, this configuration seamlessly integrates strength, function, and modern aesthetics into a single unit.
The 14.5″ 4150 Chrome Moly Vanadium barrel is QPQ Nitride treated, enhancing longevity and offering excellent resistance to corrosion and fouling. With a 1:7 twist rate, the barrel is optimized to stabilize heavier 5.56 NATO and .223 Remington loads, making it a solid performer across tactical, competitive, and hunting applications. The M4 profile keeps it maneuverable and balanced, particularly for those running optics and accessories.
The 13.5″ MOD 4 Handguard features a continuous top Picatinny rail and M-LOK slots along the sides and bottom. It’s ideal for attaching mission-critical accessories such as weapon lights, foregrips, and pressure pads. The free-floating design ensures consistent accuracy while keeping weight manageable. This model is pre-installed with a pinned and welded muzzle device, making it NFA-compliant when paired correctly.
The receiver is machined from 7075-T6 aluminum and finished in durable Type III hardcoat anodize. The assembly includes a forward assist and port door, and the M4 Feed Ramp Extension ensures flawless feeding during high-volume shooting. The gas system is mid-length, offering a smoother recoil impulse and reduced wear on internal parts.
Threaded at 1/2×28 and finished with an 11° target crown, this upper is both suppressor- and brake-ready. It’s fully compatible with mil-spec AR15 lower receivers and is ideal for shooters building a lightweight yet robust upper receiver group with a shorter profile and professional-grade components.
Product Information
| Product Type | Upper Receiver, Complete Upper |
|---|---|
| Material | 4150 Chrome Moly Vanadium, 7075-T6 Aluminum |
| Gas System | Carbine |
| Muzzle Thread | 1/2×28 |
| Handguard | 13.5" M-LOK |
| Series | M4E1, MOD 4 |
| Manufacturer | Aero Precision |
| Platform | AR15 |
| Color | Black |
| Finish | Anodized |
| Caliber | 5.56 NATO |
| Length | 14.5" |
| Twist Rate | 1:7 |
| Barrel Finish | QPQ Nitride |
| Compatibility | Standard AR15 components |
| Made in USA | Yes |
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