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Brand NameJj Airsoft
Product DescriptionItem Name: JJ Airsoft Type 96 Hop Up Unit SetModel: JA-3608Original Version:PDI Type 96 Hop Up Unit SetColor: BlackBrand Name: JJ AirsoftMaterial: 7075-T6 Aluminum-alloyNet Weight: 0.04kgGross Weight: 0.06kg For Type96 / L96 / MB01 and other compatible Airsoft Spring Sniper (Requires AEG Style Inner Barrel and Hopup Bucking, not included)Hop-up devices apply a backspin to the pellet so that the pressure force acts on the pellet opposite to the direction that gravity is pulling it. This causes the pellet to fall less over a given distance than it would without the spin applied to it.This is often implemented as a rubber piece at the rear of the barrel that is thicker at the top of the barrel than the bottom. As the pellet moves past this piece it tends to roll, inducing a backspin. This is most often adjustable so that the effect can be tuned to suit the weight or speed of the pellet and each player\'s preference.