Aero Precision M4E1-T Complete Upper, 11.5″ 5.56 Mid-Length Gov Profile Barrel, 10.6″ MOD 4 Handguard – Black
The Aero Precision M4E1-T Complete Upper, 11.5″ 5.56 Mid-Length Gov Profile Barrel, 10.6″ MOD 4 Handguard – Black, is an outstanding option for anyone building a short-barreled rifle or AR pistol. This configuration offers compact handling and professional-grade components in a streamlined package.
The barrel is made from 4150 Chrome Moly Vanadium steel and finished with a QPQ Nitride treatment for extreme resistance to wear and corrosion. Its 1:7 twist rate ensures reliable performance with heavier 5.56 rounds and supports accuracy across a range of applications, from close-quarters to mid-range engagements. The carbine-length gas system delivers smooth cycling and reliable function.
The 10.6″ MOD 4 Handguard is free-floating, lightweight, and equipped with M-LOK slots along all sides. It supports easy attachment of lights, grips, and other mission-specific gear while preserving consistent barrel harmonics for enhanced precision. The top Picatinny rail offers additional mounting space for optics and iron sights.
Aero’s M4E1 upper is precision-machined from 7075-T6 aluminum and hardcoat anodized. It includes a forward assist and port door, and the M4 Feed Ramp Extension ensures seamless feeding under stress. The 1/2×28 threaded muzzle is compatible with standard flash hiders, brakes, and suppressors. The barrel is topped with an 11° target crown to protect the bore and enhance long-term accuracy.
Perfect for tactical builds, law enforcement setups, or personal defense platforms, this upper is fully compatible with all mil-spec AR15 lowers and 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 | 10.6" M-LOK |
| Series | M4E1, MOD 4 |
| Manufacturer | Aero Precision |
| Platform | AR15 |
| Color | Black |
| Finish | Anodized |
| Caliber | 5.56 NATO |
| Length | 11.5" |
| Twist Rate | 1:7 |
| Barrel Finish | QPQ Nitride |
| Compatibility | Standard AR15 components |
| Made in USA | Yes |
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Arm or Ally is a stocking dealer for all Aero Precision, Faxon Firearms, Ballistic Advantage, HOLOSUN, Toolcraft, Elftmann Tactical, Timney, TriggerTech, HIPERFIRE and was named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!
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