Best plunger to get

While I’m pulling down my kriss vector I’m wondering if be a good time to buy new plunger in throw in it. An if any1 could recommend some brands an 14 or 15 tooth

Only replace the piston if you are upgrading to metal gears, the metal rack does not play well with the stock nylon gears.
As far as brand you don’t have a lot of options for the Vector, I like the SHS 14t nylon but it will require mods to fit, the rail slots are wider and the piston needs the angled end to fit.
Most of the Vector specific piston’s in nylon are ok.

I picked up some random polycarbonate one from eBay which fitted properly