Aero Precision 300 Blackout Upper

Aero Precision's .300 Blackout complete upper receivers provide an excellent platform for suppressed shooting and close-quarters applications. The .300 Blackout cartridge was specifically designed for use with suppressors and short barrels, making this upper an ideal choice for home defense, personal protection, or tactical applications where reduced noise signature is beneficial. Aero's commitment to precision manufacturing ensures these uppers deliver reliable performance at an accessible price point.

The barrel is crafted from 4150 Chrome Moly Vanadium steel with a QPQ corrosion-resistant finish, providing excellent durability and wear resistance. Available in multiple barrel lengths including 8", 10", and 16" configurations, these uppers use a pistol-length gas system optimized for .300 Blackout's pressure curve. The .750" gas block journal accommodates standard low-profile gas blocks, and the 5/8x24 thread pitch is ideal for .30 caliber suppressors and muzzle devices.

Each complete upper features Aero's ATLAS S-ONE or R-ONE M-LOK handguard, offering lightweight construction with abundant accessory mounting options. The M4E1 enhanced upper receiver provides improved aesthetics and functionality compared to standard mil-spec designs. These uppers ship without BCG or charging handle, allowing builders to select components that match their specific requirements and budget.