38 Gram, Small Neck Threaded Type CO2 Cartridges

High pressure rated: 900 psi. One cylinder is required for each firing. 

All sizes have 3/8" x 24 NF threads.

Our brand meets high US military and lifeguard standards.  This assures you that they will not jam or bend your firing pin.

Click link for technical information on CO2 Cartridges.