Umarex 17rd GLOCK 17 Gen4 CO2 Airsoft Magazine (KWC)

The Umarex 17rd GLOCK 17 Gen4 Co2 spare airsoft magazine by KWC is made from heavyweight aluminum, giving a hefty feel to the G17 GEN4 airsoft pistol. This Co2 Umarex magazine has a high-efficiency internal gas system providing excellent FPS output, and reinforced valves and seals for optimal gas retention. We recommend using Valken 12g Co2 Cartridges with this gas pistol magazine.