Colt

This Listing is for One Factory Brand New in the Packaging Colt SP63528 AR-15 M4 Upper Receivers in Black. 

UPC = 000000000000

Manufacturer = Colt's Manufacturing
Manufacturer Part # SP63528

Type = Upper Receiver
Caliber = 556NATO / 223 Remington
Color = Black

Accessories = Dust Cover, Forward Assist, M4 Feed Ramps

The durability, reliability and excellent build quality of Colt uppers will provide years of service you can count on.