Airsoft Firefly Hop Up Bucking for AEG Hard. A replacement bucking for your AEG. Fire Fly makes some of the best hop up units in Japan! The hard bucking style is for heavily upgraded guns around or over 400 FPS only. If your gun is stock, or shooting under 400 FPS, consider the normal or soft style hop up bucking for your gun - as they're more reliable.
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✈ TIME DELIVERY ✈
United States: Usually 10-15 business day.
International: Usually 12-22 business day.
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