Aero Precision's M4E1 5.56 NATO Assembled Upper Receiver is a testament to precision engineering and design excellence. Featuring a 16'' barrel with a mid-length gas system, this upper receiver is crafted from 7075 T6 aluminum and finished with a hard coat anodized black. Its standout features include a Gen 2 Enhanced Handguard with a continuous top rail and anti-rotation tabs, ensuring ease of use and superior performance.

Ideal for range time and training, the M4E1 upper receiver is compatible with AR-15 platforms, offering versatility and reliability. Aero Precision is renowned for its innovative designs and commitment to quality, making this upper receiver a top choice for firearm enthusiasts.

Key Features:
- Manufacturer: Aero Precision
- Model: M4E1
- Caliber: 5.56 NATO
- Condition: New
- Action: Semi-Automatic
- Finish Color: Anodized Black
- Barrel Length: 16"
- Number of Magazines: Not Included
- Capacity: Not Included
- Optic Footprint: Not Included
- Unique Features: Gen 2 Enhanced Handguard, Anti-Rotation Tabs
- Night Sights: No
- External Safety: No
- Threaded Barrel: No
- What's In The Box: Upper Receiver, Handguard, Barrel, Gas Block, Gas Tube
- Weight: 48.5 oz
- Length: 26 in
- Width: Not Provided