The Anti-Reversal Latch in your Airsoft Electric Gun is responsible for preventing reverse-motion of the gears, which would cause damage to your Piston/Gear Teeth if it was allowed to happen during a cycle of the Gearbox. It is a metal piece which sits on the Bevel Gear, and is held in place by a spring to physically block the Gear should it want to turn backwards on itself. This is a pretty vital part to the long-term operation of your AEG; a faulty Anti-Reversal Latch can usually be diagnosed by an winding noise heard after firing. You'll know when you hear it!
Airsoft Electric Parts - Anti-Reversal Latch
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