| Paintguns, also known as Markers, come in a variety of shapes and styles, from simple to sophisticated. Stockguns are powered by small 12-gram CO2 powerlets that have to be changed after 15 to 25 shots. Nearly all stockguns are pumpguns.
With a pumpgun, each time a player wants to shoot a paintball, the player must first must cock the paintgun by using a pump and then squeeze the trigger. The pumpgun must be recocked before the player can shoot again.
Pumpguns may be powered by 12-grams, or by larger, refillable CO2 or compressed air cylinders that supply hundreds of shots per fill.
Semi-automatic paintguns are generally powered by refillable cylinders. With a semi-auto, the player first must cock the paintgun in order to shoot a paintball. Then the mechanics of the paintgun will recock the paintgun so that the next time the player squeezed the trigger, another paintball is shot.
(In contrast, with a fully-automatic system, the mechanism is cocked once; then, if the trigger is squeezed and held down without release, the mechanism will continue to shoot until the trigger is released.) |  These ladies won a stockgun tournament and three Phantom stockguns from Component Concepts at Top Gun, N.J.  The splash anodized Airgun Designs RT nearly matches Hoover's Renegade splash uniform. | 
