Unicorn Airsoft
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Unicorn Airsoft's 80-degree hop-up bucking is a silicone rubber sleeve that sits inside a hop-up chamber and contacts each BB as it passes through. The 80-degree hardness rating indicates firm rubber designed for heavier BBs and higher-velocity builds. A harder bucking maintains its shape under the compression of stronger springs, which helps keep backspin consistent shot to shot. It comes in black and ships as a single part; the hop-up chamber and inner barrel are not included.