Patent attributes
A pneumatic assembly for a paintball gun preferably includes a bolt slidably arranged on a valve stem. The bolt is preferably moveable between an open and a closed position. The bolt preferably provides a firing mechanism for the paintball gun by permitting compressed gas from a compressed gas storage area to flow through the bolt to fire the paintball gun when the bolt is closed but preventing the transfer of compressed gas through the bolt when the bolt is open. An internal area of the valve stem can be arranged to communicate with the compressed gas storage area to increase the effective volume of the compressed gas storage area without increasing the size of the paintball gun. This can permit lower pressure operation of the paintball gun. A supply of compressed gas to the compressed gas storage area can be cut off during firing to improve gas efficiency.