Aero Precision's M4E1 Threaded Assembled Upper Receiver showcases a new angular machined design, crafted from 7075-T6 aluminum for durability and precision. This upper receiver integrates seamlessly with Enhanced and ATLAS Series Handguards, featuring M4 Feedramps and laser engraved T-marks for reliable performance and clear markings.

Ideal for range time and training, the M4E1 Upper Receiver is compatible with standard AR15/M16 components, enhancing your rifle's functionality. Aero Precision is renowned for its innovation and quality craftsmanship.

Key Features:
- Manufacturer: Aero Precision
- Model: M4E1 Threaded Assembled Upper
- Product Type: Upper Receiver
- Material: 7075-T6 Forged Aluminum
- Finish Color: Anodized Black
- Weight: 8.65 oz
- Unique Features: Enhanced forging for a "billet look", threaded forward assist roll pin
- What's In The Box: Port door, forward assist