G&G Drum Mag for GTP9/SMC9 Airsoft GBB pistol (300 rounds)
Product description
SMC9 gas drum magazine with 300 BBs capacity. Of course also suitable for the GTP9 models.
The magazine is filled with BBs via the rear filling flap until it is full and then the balls are transported upwards using the front panel (which is also the wind up wheel).
The filling valve for the gas is located in the middle on the back of the drum.
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