WHAT DOES COLT 20 INCH CLASSIC UPPER MEAN?

The modern day M16/M4 rifle is designed around the thought of modularity. Most of the BCM® flat leading uppers characteristic a USGI form laser etched T-marks to offer addressing with the remounting of tactical extras including optics, laser sights, and many others.Your privateness is crucial to us, and any personalized information you provide to