What is a marker in paintball?

A marker in paintball is a device that shoots paintballs using compressed air or CO2. It typically has a hopper on top to hold the paintballs and a trigger mechanism to fire them. Markers can vary in size and weight, with some being more compact and lightweight for speed and agility on the field. They can also vary in firing modes, with some having semi-automatic or fully automatic settings. Markers can be customized with different barrels, grips, and other attachments to suit the player's preferences and playing style. It is important to properly maintain and clean a marker to ensure its longevity and performance.