NUPROL 4.0 Ultimate Power Gas is a Ultra high performance gas for (non)GBB pistols & rifles, designed to operate at lower temperatures (between 3c - 20c) allowing to use your weapon all year round. Using this high power mix gives an increase in FPS, GBB efficiency and a harder kick.
Each bottle is constructed from strong Alloy, and contains 300g of pressurised gas. The nozzle is long, and is constructed from Metal.