Editing Stock-class paintball (section)

=== Traditional stock-class ===

Traditional stock-class rules restrict the operation, ammunition capacity and propellant supply of paintball markers.

The principal requirements are:

* '''Manual operation:''' Markers must be manually cycled between shots, generally by pump, bolt or lever action.
* '''Horizontal feed:''' Paintballs must be supplied from a tube running parallel to the barrel, without a conventional hopper.
* '''Limited ammunition:''' Feed tubes generally contain approximately 10 to 20 paintballs.
* '''12-gram CO2:''' Markers must be powered by a single 12-gram CO2 cartridge.
* '''No semi-automatic firing:''' Markers must not cycle automatically between shots.

Traditional tournament rules also restricted certain modifications, including autotrigger mechanisms, check valves and rapid CO2 cartridge changers.[4][8]

There is no universally enforced stock-class rulebook, and individual event organisers may permit different configurations.