Nine Ball Feather Weight Piston For Marui 18 GBB [Code: NB-4560329175491]
Retail Price: 43.20
Utilizing the low weight high strength properties of modern polymers, this skeletoned plastic design makes this piston / blow back chamber / blow back housing barely 6g in weight. Lower weight to the cycling mass means that the same gas pressure will cycle it faster increasing your cyclical rate of fire.