With this drum mag from G&G for the SMC9 you will not easily run out of ammunition. The drummag has a bb capacity of 300bb's. Filling the drum mag is very easy.

- Remove the back cover, squeeze both tabs and then turn counterclockwise.
- Add green gas using the fill valve in the middle.
- Fill the bb's in the loading compartment until it is full.
- Now close the back cover.
- Wind up the front wheel to feed bbs to the top of the drum magazine.

AND GO!!!

Weight: 1585gr