Aero Precision M4E1 - Complete Lower
The Aero Precision M4E1 Complete Lower Receiver is a 5.56 NATO/.223 Rem assembled lower featuring the enhanced M4E1 design with integrated trigger guard and A2 pistol grip. Includes a carbine-length receiver extension and mil-spec lower parts kit in black anodized finish. The M4E1 design adds billet-style features to a forged platform for a premium fit and finish.

Specifications
| UPC | 840014607839 |
|---|---|
| Brand | Aero Precision |
| Model | M4E1 - Complete Lower |
| Caliber | 223 Remington |
| Mfg Part Number | APAR600112 |
| Mfg Id | AERO |
| Barrel Length | N/A in |
| Capacity | N/A |
| Finish | Anodized |
Aero Precision is an American firearms component manufacturer specializing in AR-15 and AR-10 rifle parts, complete uppers, stripped and complete lower receivers, handguards, and bolt-action rifle systems. Headquartered in Washington State, the company applies precision machining techniques originally developed for aerospace manufacturing to produce mil-spec and enhanced AR-platform components at scale.
The Aero Precision product catalog spans the M4E1 line for AR-15 builds, the M5 line for AR-10/.308 platforms, the EPC line for pistol-caliber carbines, and the Solus line of bolt-action rifles for hunting and precision shooting applications. The company also owns Ballistic Advantage, a barrel manufacturer, and VG6 Precision, known for muzzl…
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