Deep Fire Reinforced Gearbox Case Ver 3 Gearbox with 6mm Bearing for AK

Deep Fire Reinforced Gearbox Case Ver 3 Gearbox with 6mm Bearing for AK Deep Fire Reinforced Version 3 AEG Gearbox with 6mm Bearing Essential part for upgrading your Airsoft Electric Gun AEG To build a tight & durable gearbox 6mm bearing Gearbox (Include Bearing) Gearbox: Version 3 Suiatble For Tokyo Marui AK Series Airsoft AEG Rifle As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed