Wolverine Airsoft talks about FRAC to standard gripline with their MTW series... "The FRAC (Fixed Rear Airline Connector) is standard on some MTW like the MTW-308 and the Gen-12 MTW Shotgun. If you prefer another option like the WRAITH or a standard grip line, the FRAC uninstalls as easily as it installs. Sam shows you how on this episode of What the Tech!"

In this episode of Wolverine Airsoft's "What The Tech?!" they talk about FRAC for HPA use... "The FRAC (Fixed Rear Airline Connector) was introduced on the MTW-308 and provides a hard-point airline fitting on your MTW’s sling plate, removing the need to run your airline out your grip and allowing for one-handed connecting/disconnecting of the airline.

Glenn installs FRAC on an M4 on this episode of What the Tech!"