Colt's M4 Upper BLK is a testament to Colt's commitment to durability and reliability. Engineered with precision, this upper receiver features M4 feed ramps and a forward assist, ensuring seamless operation and longevity. Ideal for range time and training, this upper receiver enhances your shooting experience with its robust build. Colt's Manufacturing is renowned for its innovation and quality in firearm components.

Key Features:
- Manufacturer: Colt
- Model: M4 Upper BLK
- Caliber: 223 Remington, 556NATO
- Condition: New
- Action: Semi-Automatic
- Finish Color: Black
- Barrel Length: N/A
- Number of Magazines: N/A
- Capacity: N/A
- Optic Footprint: N/A
- Unique Features: M4 Feed Ramps, Forward Assist
- Night Sights: No
- External Safety: No
- Threaded Barrel: No
- What's In The Box: Upper Receiver
- Weight: N/A
- Length: N/A
- Width: N/A