ASG Ultrair High Power Propellent Gas / 178 PSI (Red)
 
A high-power GBB fuel that’s ideal for winter conditions
 
This 178 psi* Ultrair Airsoft Power Gas is a high-performance red gas propellant, formulated to help keep equipment-stress to a minimum at recommended temperatures, while also maintaining your gun’s performance as well as your competitive edge during matches in the winter.