Aero Precision's M4E1 300BLK Assembled Upper is a testament to engineering excellence, featuring a 10" barrel with a threaded muzzle and RM9.3" handguard. Designed for optimal performance, it offers a durable anodized finish and a lightweight build, making it ideal for range time and training sessions. Known for innovation, Aero Precision delivers reliability and quality.

Key Features:
- Manufacturer: Aero Precision
- Model: M4E1 300BLK Assembled Upper
- Caliber: .300 AAC Blackout
- Condition: New
- Action: Semi-Automatic
- Finish Color: Anodized Black
- Barrel Length: 10"
- Number of Magazines: Not Included
- Capacity: Not Applicable
- Optic Footprint: Full Picatinny Rail
- Unique Features: Enhanced forging for a "billet look", quick disconnect sling socket
- Night Sights: No
- External Safety: No
- Threaded Barrel: Yes
- What's In The Box: Upper Receiver, Handguard, Barrel
- Weight: 4.5 lbs
- Length: 23.15"