Umarex 22rd H&K USP COMPACT GBB Airsoft Magazine (KWA)

The Umarex 22rd H&K USP Compact Green Gas spare airsoft magazine by KWA 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 Green Gas with this gas pistol magazine.