Click to expand Tap to zoom Umarex KWA HK MP7 A1 Gas Blow Back 40 Round Airsoft Magazine Airsoft Use Only by HK Sale $69.95 | / SKU 117763 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Fits the Umarex HK MP7 GBB Rifle by KWA. 40 BB Capacity. Green Gas MagazineItem #2279021