Aero Precision M4E1 Complete Upper Receiver | Upper Receiver | 14.5" Barrel | 5.56 NATO | w/ Pinned Gamma 5.56 SL | M-LOK ATLAS R-ONE HG | Black | APAR700704M5V38

This complete upper includes our ATLAS R-ONE Handguard. The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

Features:

• Family: Aero Precision
• Model: M4E1 14.5” Complete Upper
• Type: Upper Receiver
• Barrel: 14.5” Barrel 
• Action: Semi-Auto
• Caliber: 5.56 NATO
• Finish: Anodized
• Color: Black
• Frame: M4E1
• Sights: Picatinny
• Additional Info: w/ Pinned Gamma 5.56 SL, M-LOK ATLAS R-ONE HG