Aero Precision M4E1 Threaded Complete Upper 16" 5.56 Mid-Length Barrel, 15" Atlas R-One M-Lok Handguard OD Green Anodized

This complete upper includes our new 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.

          INCLUDES:

• Aero Precision M4E1-T 16in 5.56x45mm NATO RM15 Complete Upper Receiver
• M4E1 Threaded Assembled Upper Receiver
• ATLAS R-ONE Handguard Of Choice
• 18in 5.56 Rifle Length CMV Barrel
• Low Profile Gas Block
• Rifle Length Gas Tube