Aero Precision M4E1 Threaded Complete Upper, 16" 5.56 Mid-Length Barrel, ATLAS R-ONE 15" M-LOK HG - Kodiak Brown - APAR700401M7

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.

Features:

• New enhanced forging that gives the upper receiver a billet look
• New picatinny profile that blends seamlessly with our Enhanced Series Handguards
• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks
• Includes port door and forward assist installed

Specifications:

• Manufacturer: Aero Precision
• Cartridge: 5.56x45mm NATO
• Barrel Profile: Government
• Barrel Twist Rate: 1-7
• Threads per Inch: 1/2×28
• Handguard Type: A2
• Muzzle Device: A2 Flash Hider
• Gun Model: AR-15
• Handguard Length: 15 in
• Gun Type: Rifle
• Gun Make: AR Platform
• Barrel Material: 4150 CMV Steel
• Bolt Carrier Group Included: No
• Charging Handle Included: No