USED – Aero Precision M4E1 Threaded Assembled Upper Receiver for AR-15

The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers.

• New enhanced forging that gives the upper receiver a “billet look”.
• New picatinny profile that blends seamlessly with our Enhanced and ATLAS Series Handguards.
• M4 Feedramps.
• .250 takedown pin holes.
• Includes threaded forward assist roll pin.
• Made In America.
• Platform: AR15.
• Material: Machined from 7075-T6 forged aluminum.
• Compatibility: Works with standard AR15/M16 components.
• Weight(s): 8.65 oz.
• Other: Barrel Nut Torque – 50 ft-lbs.
• Includes port door and forward assist.