The AERO PRECISION M4E1 Stripped Upper Receiver in anodized black offers a premium foundation for your AR-15 build. Forged from 7075-T6 aluminum and precision machined, this upper receiver features an enhanced design that seamlessly blends with ATLAS handguards. The M4E1 design provides a billet-like appearance without the associated cost, making it an excellent choice for custom builds.

Features and Specifications:

• Material: 7075-T6 forged aluminum
• Finish: Type III hard coat anodized black
• Weight: 6.9 oz
• M4 feed ramps for reliable feeding
• .250 takedown pin holes for improved fit
• Laser engraved T-marks for accessory alignment
• Compatible with standard AR-15/M16 components
• Threaded for standard AR-15 barrel nuts (1.250" x 18 TPI)
• Picatinny rail profile compatible with ATLAS handguards
• Includes threaded forward assist roll pin
• Does not include port door or forward assist