Aero Precision M4E1-T MOD4 Upper Receiver 5.56x45 15 inch MOD 4 (ODG)

Aero Precision M4E1-T 5.56x45 15 inch MOD 4 Upper Receiver includes the MOD 4 Handguard. Machined from 6061-T6 aluminum and 7075-T6 aluminum, the handguard is engineered for stiffness to drastically reduce deflection under load. It attaches to the upper receiver via a steel barrel nut, which also serves to significantly reduce point-of-impact shift when using an infrared laser aiming device under load. A 7 sided M-LOK interface allows the user to customize their handguard to their exact specifications and needs. Lastly, each of the 4 QD sockets on the MOD 4 utilize a steel liner to ensure a higher shear load and longer service life with the continued use of QD swivels. Specifications for Aero Precision M4E1-T 5.56x45 15 inch MOD 4 Upper Receiver: Manufacturer Aero Precision; Caliber 5.56x45mm NATO; Barrel Profile Government; Barrel Twist Rate 1-7; Muzzle Device A2 Flash Hider; Finish Anodized; Fabric/Material 6061-T6 and 7075-T6 aluminum; Gas Block Journal Size-Diameter .750 in; Gun Make AR Platform; Barrel Material 4150 CMV Steel; Bolt Carrier Group Included No; Charging Handle Included No; Magazine Included No; Flutes No; Package Contents Aero Precision M4E1-T 5.56x45 15 inch MOD 4 Upper Receiver.