Aero Precision M4E1-T 11.5in 5.56x45mm NATO Complete Upper Receiver

This complete upper includes our new ATLAS R-ONE Handguard! The R-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. 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. Specifications for Aero Precision M4E1-T 11.5in 5.56x45mm NATO Complete Upper Receiver: Manufacturer: Aero Precision Cartridge: 5.56x45mm NATO Overall Length: 20.5 in Barrel Length: 11.5 in Barrel Profile: Government Gas System Length: Carbine Length Barrel Twist Rate: 1-7 Threads per Inch: 1/2×28 Handguard Type: A2 Muzzle Device: A2 Flash Hider Finish: Anodized Gun Model: AR-15 Gas Block Journal Size-Diameter: .750 in Handguard Length: 10.3 in Gun Type: Rifle Gun Make: AR Platform Barrel Material: 4150 CMV Steel Bolt Carrier Group Included: No Charging Handle Included: No Magazine Included: No Features of Aero Precision M4E1-T 11.5in 5.56x45mm NATO Complete Upper Receiver 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 Package Contents: Aero Precision M4E1-T 11.5in 5.56x45mm NATO Complete Upper Receiver M4E1 Threaded Assembled Upper Receiver 10.3″ ATLAS R-ONE M-LOK Handguard  11.5″ 5.56 CMV Barrel, Carbine Length Carbine-Length Gas Tube Low Profile Gas Block