VFC VR16 URG-I 11.5" EVO GBBR GTP9 fluted SAI style outer barrel

fluted SAI style outer barrel (EMG SAI licensed proprietary convex thread cap included)

Low Profile Gas Block and Mock Gas Tube

Piston Head: POM

CNC Steel Male Nipple

Case Material - Aluminium Cast

VFC VR16 URG-I 11.5" EVO GBBR GTP9 fluted SAI style outer barrelThe M4 carbine is a rifle system developed in the United States during the 1980s. It is a shortened version of the M16A2 rifle. The M4 is extensively used by the US military, which decided to largely replace the M16 rifle in the U. S. Army (2010) and the U. S. Marine Corps (2016) combat units as the primary infantry service rifle. The M4 has been adopted by over 60 countries worldwide, and has been described as "one of the defining firearms of the