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Mfg Item #: SP63528
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.