Gas Magazine is very easy to refill compared to the CO2 version. Also, you have multiple gas power options for different temperatures ranging from super-powerful black gas to green and blue gas for summer days.
CO2 Magazine provides a lot of horsepower. The advantage of CO2 is that it works great at low temperatures but if you want to refill the magazine, you have to switch the whole capsule.
How to stack
Make sure the BBs are stacked properly to get as many BBs in as possible and to ensure reliable feeding.
Note: SSP1 magazine shown in the picture.