New from G&G Armament due to high customer demand, if you ever felt outgunned by AEG's with super high capacity magazines, there is now a solution for that with your GTP-9 or SMC-9!
 
Features of this high capacity green gas drum magazine:
Manual Winding Mechanism using Rotating Front Plate
Easy Fill with Removable Back Plate
300 Round Capacity Completely Dispenses with Single Gas Charge (Green Gas Only)
Designed for the SMC-9 and GTP-9 Pistol Series