CQB, otherwise admitted as Close Quarters Battle (or CQC, Close Quarters Combat), is a accepted hook of playing airsoft. The basic idea is for people to flop in an enclosed arena at close quarters, resulting in a fast flurry combat or multiple surprises. A lot of times the arena may be set up as if it were in an urban war zone or in terrain filled with enclosing walls, gates, doorways, tunnels, apertures, overhead openings, or below-ground approaches that enable solitary participant to explode at another from a distance of a few feet or less. CQB can also take home in night sportsman or in dense vegetation such as tall grass, shrubbery, and closely packed trees. In this type of combat the fps of the guns may have to be lower due to the closeness of the combat. Simulated grenades and booby traps are effective due to teams sticking together in such a dwarf area. Players in CQB scenarios customarily wear additional vests or covering clothing to avoid injury from close-in hits or ricochets.

To avoid unnecessary disputes that disrupt the game, players are Airsoft Guns discouraged from calling out hits on their opponent but are expected to signal a marshal to arbiter how effectively they can hit their opponents. Simulated "knife kills" can be performed when a player touches or taps an unaware opponent instead of shooting him or her at point-blank range. Players are prohibited from firing blindly when not able to see their target, especially around corners. Harsh interchange and forceful gross contact between players is strongly discouraged.