Deep Fire Reinforced 6mm Gearbox Case Ver 3 without Bearing for AK

Deep Fire Reinforced 6mm Gearbox Case Ver 3 without Bearing for AK Essential part for upgrading your Airsoft Electric Gun AEG To build a tight & durable gearbox 6mm Bearing Enhanced Gearbox Anti-Heat & Anti-Wearing Construction Suitable for Tokyo Marui AK Series Airsoft Electric Gun AEG Rifle