Colt Upper Receiver M4: The Standard of Excellence in the AR World
Introduction For many years, the unmistakable silhouette of the M4 carbine has represented the head of tactical firearms, gracing battlefields and ranges alike. From its service with the U.S. navy to its widespread adoption by legislation enforcement and civilian fanatics, the M4 has cemented its place as a legend. On the core of this iconic … Read more
