Aero Precision M4E1‑T Complete Upper, 12.5″ 5.56 Mid‑Length Gov Profile Barrel, 11.4″ MOD 4 Handguard ‑ OD Green
The Aero Precision M4E1‑T Complete Upper, 12.5″ 5.56 Mid‑Length Gov Profile Barrel, 11.4″ MOD 4 Handguard – OD Green is engineered for AR-15 builders seeking a compact upper assembly that balances maneuverability and performance. This complete upper features a 12.5″ government profile barrel chambered in 5.56 NATO, paired with a mid-length gas system for smooth recoil and reliable cycling across various conditions. Designed with both suppressed and unsuppressed shooting in mind, this Aero Precision M4E1-T Complete Upper offers modularity and durability in one streamlined package.
At its core, this Aero Precision M4E1‑T Complete Upper includes a 4150 Chrome Moly Vanadium barrel finished with QPQ nitride treatment. This finish enhances corrosion and wear resistance, while the 1:7 twist rate ensures stabilization of a broad range of 5.56 NATO projectiles, including heavier grain loads. The government profile balances strength and reduced weight, making this 12.5″ 5.56 upper ideal for duty rifles, home defense builds, and general-purpose carbines.
One of the defining features of the Aero Precision M4E1‑T Complete Upper is the 11.4″ MOD 4 free-float handguard, finished in OD Green anodizing for added wear resistance and visual distinction. The handguard includes a full-length Picatinny rail and M-LOK slots on all major faces, offering broad compatibility for mounting lights, lasers, grips, or bipods. Four integrated steel-lined QD sling sockets allow for flexible sling setups. Whether color-matching to an OD Green lower or contrasting for visual effect, this complete upper delivers modern function and finish.
The forged M4E1‑T upper receiver, constructed from 7075‑T6 aluminum, is equipped with a forward assist and dust cover and features M4 feed ramps for improved reliability. A Nickel Boron-coated barrel extension promotes smooth feeding under adverse conditions. The 1/2×28 muzzle threading comes standard with an A2 flash hider and allows users to easily install suppressors or aftermarket muzzle devices. As with all Aero Precision M4E1‑T Complete Uppers, this unit is compatible with any mil-spec AR‑15 lower receiver.
Professionally assembled and ready to pin to your lower, the Aero Precision M4E1‑T Complete Upper with 12.5″ 5.56 mid‑length barrel and MOD 4 11.4″ handguard is a premier option for builders needing compact performance without sacrificing control or durability. Its rugged OD Green finish, balanced profile, and full modular rail make it a trusted choice for defensive roles, field carry, or suppressed carbine builds. For AR-15 users who demand reliability and streamlined functionality, this Aero Precision M4E1‑T Complete Upper is a top-tier solution.
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 | 11.4" M-LOK |
| Series | M4E1, MOD 4 |
| Color | OD Green |
| Length | 12.5" |
| Manufacturer | Aero Precision |
| Platform | AR15 |
| Finish | Anodized |
| Caliber | 5.56 NATO |
| Twist Rate | 1:7 |
| Barrel Finish | QPQ Nitride |
| Compatibility | Standard AR15 components |
| Made in USA | Yes |













