Prowin Speedsoft 112rds Twin Extension Gas Magazine for Marui G17 (Hermetic Type/ Gray)

Prowin Speedsoft 112rds Twin Extension Gas Magazine for Marui G17 (Hermetic Type/ Gray) Metal Construction 112 Rounds Loading Capacity Suitable For Tokyo Marui/ Umarex G17 Series Airsoft Gas Blow Back GBB Pistol ProWin AR9 Kit for TM M4 MWS GBBRs Hermetic Type (Hidden Spring)