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

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