Aero Precision's M4E1 5.56 NATO Assembled Upper Receiver combines precision engineering with a sleek design. Featuring a 14.5'' mid-length barrel, this upper receiver is crafted from forged 7075 T6 aluminum with a hardcoat anodized finish, ensuring durability and reliability. Ideal for range time and training, the M4E1 offers a monolithic assembly with a full-length Picatinny top rail and M-LOK attachment points, enhancing customization options. Aero Precision is renowned for its innovation and quality in firearm components.

Key Features:

• Manufacturer: Aero Precision
• Model: M4E1
• Caliber: 5.56 NATO
• Condition: New
• Action: Semi-Automatic
• Finish Color: Anodized Black
• Barrel Length: 14.5''
• Number of Magazines: Not Included
• Capacity: Not Specified
• Optic Footprint: Picatinny Rail
• Unique Features: Enhanced M-LOK Handguard
• Night Sights: No
• External Safety: No
• Threaded Barrel: Yes
• What's In The Box: Upper Receiver Only
• Weight: Not Specified
• Length: Not Specified
• Width: Not Specified