Tuning co2 gbb pistol

[Dannn]

Has anyone got experience tuning gbb pistols for more power, ie new piston seals and "porting" the valve on the mag

[Monty]

For what gun?

 

... And why on earth do you require more power from your Co2 pistol?

[Dannn]

It's just a general question really as there's not much info on the matter

[sp00n]

to be honest most CO2 pistols have issues with being too powerful (over 350fps)

 

i have no idea how to get more power out of one.