VooDoo Innovations LifeCoat Rifle Length Gas Tube VDI-GT-R
VDI gas tubes are compatible with mil-spec and non mil-spec upper receivers. This gas tube is machined to exceed all MIL TDP specifications and is enhanced using a proprietary LifeCoat treatment. This is a process that offers superior:
Requires a barrel with a rifle length gas system - measures approximately 13.241" from barrel extension to shoulder.
LifeCoat is a molecular bonding process with metal. It allows the chemicals to seep down below the surface area of the metal, instead of just adding to a top layer.