Aero Precision M4E1 Threaded Complete Upper, 16" .300 Blackout Barrel, ATLAS R-ONE 15" M-LOK HG - Anodized

Aero Precision M4E1 Threaded Complete Upper, 16" .300 Blackout Barrel, ATLAS R-ONE 15" M-LOK HG - AnodizedThe Aero Precision AR-15 barreled upper receiver is built around the M4E1 Threaded upper receiver designed for use with standard barrel nut setups. The receiver is forged from 7075-T6 aluminum and precision machined to M4E1 specs to ensure proper fit with Mil-Spec and aftermarket parts. It is matte black hardcoat anodized and features laser engraved T-marks. This 16" .300 Blackout barreled upper comes with the Atlas R-One M-LOK free float handguard with a full length picatinny top rail and a slim 1.3" inner diameter. Features:16" .300 Blackout4150 Chrome Moly Vanadium barrelHPT and MPIBlack Nitride finish1:7 twist ratePistol length gas systemM4E1 Threaded forged 7075-T6 upperHardcoat anodizedLaser engraved T-marksScalloped picatinny top railBuilt in anti-rotation tabsM-LOK slotsDoes not include BCG or charging handleSpecifications:Assembly: Barreled AssembliesBarrel Coating: Salt Bath NitrideBarrel Contour: MediumBarrel Length: 16Barrel Lining: Salt Bath NitrideBarrel Material: 41V50 Chrome Moly Vanadium SteelCaliber Gauge: 300 BlackoutGas System Length: PistolGas System Type: Direct ImpingementHandguard: 15 in Aero Precision ATLAS R-ONE M-LOK RailMuzzle Device: A2 Flash HiderThread Pattern: 5/8 X 24Twist Rate: 1:7The .300 BLK 16" barrel is machined from 4150 CMV steel with a salt bath Nitride finish, a rifle length gas system, and a 1:7 twist rate. It has an M4 feed ramp barrel extension and is magnetic particle inspected as well as high pressure tested. A standard A2 flash hider with 5/8x24 threading is attached to the muzzle. Aero Precision takes some of the most state-of-the-art manufacturing techniques and equipment derived from their work in the aerospace industry and applies it to their products in the firearms industry. They have utilized their knowledge from years of building aircraft components to design and engineer AR-15 handguards, receiver sets, scope mounts, and more. They treat every product as if it were a precision flying machine and adhere to strict quality standards to ensure law enforcement, military, and civilian customers receive a product they can rely on.