Aero Precision M4E1 Threaded Complete Upper ATLAS S-One Handguard

Description

Product Overview

Aero Precision’s M4E1 threaded complete upper built around a 10 in .300 Blackout 4150 CMV barrel with QPQ corrosion-resistant treatment, paired with the ATLAS S-ONE handguard. The assembly ships complete for fast builds, with the receiver incorporating M4 feedramps and installed port door and forward assist.

Key Features

• 10 in .300 Blackout barrel with 1 in 7 twist for a wide range of subsonic and supersonic loads
• QPQ corrosion-resistant finish on the barrel interior and exterior for improved durability
• Pistol-length gas system with .750 gas block journal and specified .0935 gas port for reliable cycling
• 5/8x24 threaded muzzle for common .30 caliber muzzle device compatibility
• M4E1 threaded upper receiver with M4 feedramps, port door, and forward assist installed
• ATLAS S-ONE handguard with 1.3 in inside diameter and picatinny rail sections for easy accessory mounting

Add this complete upper to your lower and finish the build with your choice of BCG and charging handle for your .300 Blackout setup.