Aero Precision M4E1 Threaded Complete Upper Features
The 18-inch CMV barrel is made from 4150 CrMoV steel with a QPQ finish, ensuring outstanding durability and resistance to corrosion. Featuring a rifle-length gas system, a 1:7 twist rate, and an A2 flash hider, this barrel delivers consistent performance with various ammunition types. The low-profile gas block enhances reliability and complements the clean aesthetics of the build.
The 15-inch ATLAS R-ONE M-LOK handguard offers a lightweight and slim profile with full M-LOK compatibility for versatile accessory mounting. Its integrated quick disconnect sling sockets provide added utility for sling setups. The M4E1 threaded receiver includes laser-engraved T-marks, M4 feed ramps, and pre-installed port door and forward assist for out-of-the-box readiness. Note: This complete upper does not include a BCG or charging handle, allowing for user customization.
Aero Precision M4E1 Threaded Complete Upper Specifications
- Manufacturer: Aero Precision
- Model: M4E1 Threaded Complete Upper Receiver
- Cartridge: 5.56 NATO
- Barrel Length: 18″
- Gas System: Rifle-Length
- Barrel Material: 4150 CrMoV Steel with QPQ Finish
- Twist Rate: 1:7
- Handguard: 15″ ATLAS R-ONE, M-LOK Compatible
- Receiver: M4E1 Threaded, Anodized Black
- Gas Block: Low Profile, .750″ Journal
- Thread Pattern: 1/2×28 (A2 Flash Hider Installed)
- Features:
- M4 Feedramps
- Laser Engraved T-Marks
- Port Door and Forward Assist Installed
- Lightweight ATLAS R-ONE Handguard (1.3″ ID, 1.5″ OD)
- Quick Disconnect Sling Sockets
| Barrel Length | 18 |
|---|---|
| Caliber | 5.56 |
| Condition | New in Box |
| Finish Per Color | Black |
| Manufacturer | Aero Precision |
| Manufacturer Part Number | APAR700705M8 |
| Model | M4E1 Threaded Complete Upper |
| Type | Uppers |
| UPC | 840014602087 |
