Umarex 18rd H&K USP Tactical Full Size CO2 Airsoft Magazine (KWC)
The Umarex H&K USP Co2 18rd spare airsoft magazine by KWC is made from heavyweight aluminum, giving a hefty feel to the USP airsoft pistol. This green gas 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.
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