Modify's Special Tappet Plate Ver. 2 has unique design to reduce contact area with gearbox to achieve faster reaction.
Airsoft Tappet Plate Function
A Airsoft Tappet Plate is important to an airsoft AEG gearbox. It is connected to an air seal nozzle via a spring and nub on a sector gear. Its motion enables an air nozzle to feed BBs into a hop-up unit.