CLPD @A+Studio Novel Design Piston Head for GSB/Airsoft Masterpiece Light Weight Blow Back Housing
Are you having trouble with your Gunsmith Bro/Airsoft Masterpieces light weight blow back housing, with the piston O-ring?
Does it not seal correctly?
Does the O-ring run out from the piston?
The CL Project Design Piston Head is a novel product for you!
It is not an O-ring anymore; the design is just like a tire, so gas goes into the piston will balance expand, perfectly sealing your nozzle.
No more headache with looking for the right size O-ring for your gun anymore!