Aero Precision presents the M4E1 5.56 Assembled Upper with an 11.5'' barrel, designed for precision and reliability. This upper receiver features a government profile barrel, carbine-length gas system, and an anodized black finish, ensuring durability and performance. Ideal for range time and training, this upper receiver is compatible with mil-spec AR15 components, offering versatility and ease of use. Aero Precision is renowned for its innovative designs and commitment to quality.

Key Features:
- Manufacturer: Aero Precision
- Model: M4E1
- Caliber: 5.56 NATO
- Condition: New
- Action: Semi-Automatic
- Finish Color: Anodized Black
- Barrel Length: 11.5"
- Number of Magazines: N/A
- Capacity: N/A
- Optic Footprint: N/A
- Unique Features: Enhanced forging with "billet look", M4 feedramps, laser engraved T-marks
- Night Sights: No
- External Safety: No
- Threaded Barrel: Yes
- What's In The Box: Assembled Upper Receiver
- Weight: N/A
- Length: N/A
- Width: N/A