The Aero Precision M4E1 Superlative Arms Piston Complete Upper Receiver Group is a testament to superior design and engineering. This upper receiver is crafted with precision, featuring a 16-inch barrel and a 15-inch handguard, all finished in a sleek anodized black. Its standout features include a medium contour barrel with a 1-7 twist, ensuring optimal performance and reliability. Designed for ease of use, it integrates seamlessly with AR-15 platforms, making it a versatile choice for enthusiasts.

Ideal for range time and training, this upper receiver group offers a reliable and high-performing option for firearm enthusiasts. Aero Precision is renowned for its innovation and commitment to quality, ensuring that each component meets the highest standards.

Key Features:

• Manufacturer: Aero Precision
• Model: M4E1 Superlative Arms Piston
• Caliber: 5.56 mm NATO
• Condition: New
• Action: Semi-Automatic
• Finish Color: Anodized Black
• Barrel Length: 16"
• Number of Magazines: N/A
• Capacity: N/A
• Optic Footprint: N/A
• Unique Features: Medium contour barrel, 1-7 twist
• Night Sights: No
• External Safety: No
• Threaded Barrel: Yes
• What's In The Box: Upper receiver group
• Weight: N/A
• Length: N/A
• Width: N/A