Desert Eagle Co2 Magazine Softair Cybergun 90596 Desert Eagle .50 CO2. Need Help.?

Desert Eagle .50 CO2. Need help.? - desert eagle co2 magazine softair cybergun 90596

I have recently bought 2 KWC Desert Eagle Airsoft guns. Both cartridges are equipped with a broader scope, and I wonder if you are in a magazine that can not be extended not provided, though less in length. Just wondering.