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

Aero Precision M4E1 Threaded Complete Upper, 16" 5.56 Mid-Length Barrel, ATLAS R-ONE 15" M-LOK HG - Kodiak Brown 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 that maintains a slim profile while providing the strength and stability customers have come to love in 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: 1/2x28 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