VACUUM PISTON FOR VSR PDI (631296)

Vacuum piston

Features:
Make POI.
In aluminum and steel, for Marui VSR-10 series.
Compatible with PDI cylinder.
Anti-vacuum system that removes the negative pressure during the shot.
The system is adjustable inside the piston head by means of a screw.
Internal diameter 13.5mm.
PDI recommends using with 9mm spring guide.