WGP Autococker STO 3-Way Spool Shaft Assembly - Brass (GG06-12)

The WGP Autococker STO 3-Way spool shaft assembly controls the flow of low-pressure air (LPR) to the pneumatic ram. This air pressure is what actuates the back block and bolt mechanism, which cocks the marker and loads a paintball during the firing cycle. 

The 3-way valve works by redirecting air based on the position of its internal spool shaft, which is physically linked to the trigger via a timing rod. 

• Trigger Pulled: When the player pulls the trigger, the 3-way shaft moves, redirecting the LPR air to the front of the pneumatic ram. This forces the ram, connected to the pump arm and back block, to move rearward. The rearward movement cocks the hammer (catching it on the sear) and pulls the bolt back, allowing a new paintball to drop into the breech.

• Trigger Released: When the trigger is released, the 3-way shaft returns to its original position, which switches the air flow from the front of the ram to the back. This pushes the ram, back block, and bolt assembly forward, closing the bolt and chambering the ball. 

The brass spool shaft assembly is a key internal component containing the necessary O-rings to create the seals that direct the air pressure within the 3-way body.

** Only fits STO 3-Ways.