O

Open Bolt: adj. When the marker's trigger is in a neutral (not-pulled) position, the bolt is in a rearward position leaving the breech open to allow paintballs to feed. When the trigger is pulled, the bolt moves forward, pushes the paintball into the barrel, and seals off the barrel just as the propellant gas is released to fire the paintball out the barrel. The bolt then returns to the open position. Because the motion of the bolt within the paintgun can potentially throw off your aim before the puff of propellant is released, open bolt guns are considered marginally less accurate than closed bolt guns. Most semi-automatic markers use an open bolt configuration.

O-ring: n. Circular rings of rubber, silicone or plastic used to make airtight seals between parts.

Out: -adj. Synonym for eliminated. Players who are out may no longer shoot and must proceed to the dead box and wait for the game to finish, without warning or helping their teammates. A player who cries “Out!” has conceded that he is eliminated and should not be shot again.

Outlaw: 1. n. A term used to describe playing recreationally and informally, not on a commercial paintball field, and almost always without referees (i.e. using the honor system). Usually played on property near the players’ homes and that may or may not belong to them. 1. adj. Of or related to outlaw.

Over shooting: v. When a player shoots another player an excessive number of times. This often happens because modern semi-automatic paintguns can fire so fast that many paintballs are in flight before the first one reaches the intended target. The cutoff for what is considered overshooting is hazy, but usually somewhere from 3 to 5 hits. This may or may not represent bonus balls.