Manufacturer: A&K Airsoft Gear Set For Version 2 and 3 Gearboxes With six 9mm Bearing Helical Gear Set 32:1 Ratio . Helical Gear Set for Increased Durability, Efficiency, and Reliability . Steel Airsoft Gears is stronger and lasts longer than standard AEG gears . Compatible with A&K AEG Gearbox Weight(Gram) : 88
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