ZCI double o-ring aluminum bearing piston head
bearing piston head desighned with a double o-ring to maximise compression and sir seal in your gearbox. Standard size for most pistons.
Xring Carbon fibre reinforced technopolymer piston head designed for high rof and to increase the silence of the aeg (XPAVPCF) 100% COMPATIBLE MARUI 100% MADE IN ITALY