Real Deal Optimized CNC GearsetThe Real Deal Airsoft Optimized CNC Gearset. These gears have a re engineered Tappet Cam positioning which change your tappet timing within your gearbox.. and changes it for the better ! Achieve higher FPS outputs, and much more consistent feeding on full auto. With our Real Deal Gears, your tappet plate will be picked up later, leaving your nozzle seated against the bucking longer. This allows more time for the nozzle to vibrate less & seal more.