S45 rear tank kit

Comes with carbon fiber Air Tank ready to install on your BinTac S45. 
(ALERT- PIC SHOWS ONE OF TWO STOCK DESIGNS,  350CC STOCK NOT SHOWN)
Rear AirTube with Cheek Rest And Valve( For S45/Mini and AEA 357 Terminaotr)
There are three different configuration for this
500CC Carbine Fiber with Cheek Rest+Valve
350CC Carbine Fiber with Cheek Rest+Valve
350CC Aluminum Tank with Cheek Rest+Valve