Aero Precision's M4E1 5.56mm 10.5" Carbine Upper Receiver is a testament to precision engineering and design excellence. Crafted from 7075 T6 aluminum, this upper receiver features a 10.5" barrel made from 4150 chrome-moly-vanadium steel, ensuring durability and performance. The Gen 2 Enhanced M-LOK Handguard offers a monolithic platform for accessories, with a full-length Picatinny top rail and QD sling swivel sockets for versatility.

Ideal for range time or training, the M4E1 Upper Receiver is perfect for AR-15 pistol builds or compact SBRs. Aero Precision is renowned for its innovative designs and commitment to quality.

Key Features:
- Manufacturer: Aero Precision
- Model: M4E1 5.56 ASSM UPPR RCVR GOV 10.5'' BBL CARBINE W/7''HG & FSB
- Caliber: 5.56 NATO
- Condition: New
- Action: Semi-Automatic
- Finish Color: Anodized Black
- Barrel Length: 10.5"
- Number of Magazines: N/A
- Capacity: N/A
- Optic Footprint: N/A
- Unique Features: Gen 2 Enhanced M-LOK Handguard
- Night Sights: No
- External Safety: No
- Threaded Barrel: No
- What's In The Box: Upper Receiver
- Weight: 34 oz
- Length: N/A
- Width: N/A