40MAX Air-powered Cartridge Shell

The 40MAX cartridge is an innovative small air tank. These cartridge can be used with 3D-printed shells in a variety of products like the OFD Mini-Booper, Mayday MK2 and other projects. Easily refill the 40MAX cartridge with green gas through the base port, thanks to the built-in back pressure valve. Designed for durability and reliability, it’s a single-shot air pressure tank rated at 300 PSI. The 40MAX cartridge is CNC-machined from quality materials, including aluminum, brass, O-rings, and steel. Perfect for use with 3D-printed shells from Old Fusion Designs.