Aero Precision's M4E1 300BLK Assembled Upper is a testament to superior engineering and design. Featuring a 10-inch barrel and a 9.3-inch handguard, this upper is crafted for precision and reliability. The flat dark earth finish adds a sleek look, while the threaded barrel ensures compatibility with various muzzle devices. Ideal for range time and training, this upper receiver showcases Aero Precision's commitment to quality and innovation.

Key Features:
- Manufacturer: Aero Precision
- Model: M4E1 300BLK Assembled Upper
- Caliber: .300 AAC Blackout
- Barrel Length: 10"
- Threaded Barrel: Yes
- Finish Color: Flat Dark Earth
- Unique Features: Enhanced forging for "billet look", Picatinny rail, laser engraved T-marks
- What's In The Box: M4E1 Threaded Assembled Upper Receiver, ATLAS R-ONE Handguard, .300 Blackout CMV Barrel, Low Profile Gas Block