Abstract: A paintball assembly capable of channeling air line or pipe inside of the paintball assembly using a transfer rod is disclosed. The assembly includes a main valve, an air pipe, a bolt, a hammer, and a U-shaped rod. While the main valve is configured to propel a paintball utilizing pressurized gas, the air pipe supplies and channels the pressurized gas to the main valve. The bolt guides or pushes the paintball into a firing chamber, and the hammer manages or controls the main valve for propelling the paintball upon pulling of the trigger. The U-shaped rod is used to synchronize the movement of the bolt and the hammer. In one embodiment, the U-shaped rod is configured in such a way that at least a portion of the U-shaped rod is structured around the air pipe to reduce contact with the air pipe.