Umarex Rear Stock For Rubber Ball Shotgun - Emergency Kit

The emergency stick is designed to keep non-impacted (i.e. full) cartridges until an emergency arises. Adjustable stock for 2 cartridges of 12 grams.  
The moment you need the weapon, hit the stick on the ground, which will hit both cartridges and your weapon will be ready to fire at 100% power.
This stick keeps your weapon charged and ready to be used for months, see years without risk of loss of gas or power!