Dyna Piston Head for M9A1 Marui Gas Blowback Series

DYNA Piston Head for M9A1 Marui Gas Blowback Series

Aerodynamic 6 hole air intake !! - 
Compatible with ?15 mm large diameter piston cup mounted models! 

This custom piston head is compatible with ?15 mm large diameter piston cup. 
Equipped with six hole air intake to upgrade the internal secrets of the cylinder which is the heart of the hand gun! 
Made in Japan

This product improves the sliding motion and gives a harder blowback.