Originally Posted by robbie_vlad
no there are different types of poppits FASOR (foward air spring operated return) then there is foward air air operated return.
Those 2 types use the exact same type of poppet-valve.
All pneumatic paintball guns are grouped into 2 catagories: Poppet or Spool-based.
The difference is poppets are an axial valve, and spools are linear valves. The advantage of a poppet valve is it uses pressure itself to seal the valve. Spools rely instead of gaskets for proper seal.
For poppets, there is really just 2 types: Mechanical open, and pressure assisted open (like with the mQ, Mini, and VS3)