I have recently blown my blaster up and I have a vitos big bore kit in it when I go to buy a piston for It can I buy just any 72mm piston or do I have to buy it for the blaster?
You need to buy a piston made for the blaster big bore cylinder. Make sure your cylinder is in good condition and not in need of a bore. If it needs a bore to clean it up, you will have to install a larger piston.