WHAT DOES COLT 20 ROUND MAGAZINE MEAN?

The up to date M16/M4 rifle is crafted around the concept of modularity. Every one of the BCM® flat major uppers function a USGI variety laser etched T-marks to offer addressing to the remounting of tactical components which include optics, laser sights, and many others.Essentially maintain a sight photograph and squeeze off a dry snap.  The HBar