Element All Turn Kit Design for Replace the Original Gear Set Package included Torque Up Gear Set (bevel, spur, and sector gear), Teeth Piston (15 Half Teeth Version, 4 Steel Front Teeth), Piston (With Ball Bearing), Spring Guide (With Ball Bearing), Bushing User should apply proper lubrication when installing the gears set Suitable for Airsoft Electric Gun AEG Rifle Version 2 GearBox Material: Metal Manufacturer: Element
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