The reversal latch ensures that the gears in the gearbox do not rotate backwards causing the AEG to double-fire or fire full auto on semi unintentionally. A reinforced reversal latch is a highly recommended have if you upgrade the performance of your AEG and battery for high rate of fire.
*Compatibility may vary by brand*
DISCLAIMER: Please use discretion when installing custom parts as fit and compatibility may vary. Some modification may be required. Professional installation recommended.