H&K G36C Airsoft Magazine. Works only with H&K G36C Standard Dual Power Airsoft Rifle SKU#261230 & 261231 - Does not work with any other model
Magazine Capacity: 400 rounds

High Capacity Magazine Operation:
Find the trap door, usually located on the top of the magazine near the loading nozzle.
Open trap door and fill reservoir with high quality BBs.
Wind the wheel at the bottom of the magazine (notice the pitch and volume of the click).
Continue to wind wheel until pitch changes. Once the click gets louder, or begins to "double click," the magazine is fully wound.