11-20-2007, 01:10 PM
Tell me what a cup seal is + what it does?
I'm asking just out of curiousity
a cu[sel is that little white thing on the valve pin,
the cupsel works with the valve to cut off airflow,
when the gun shoots it releases a striker which the bolt is connected to, the striker hits the vale pin which pushes the valve pin forward letting aire through the valve to the bolt/ball and the air pushes the ball through the barrel,
then the stiker comesback release the valve pin back to the valve and the valve blocks air from going into the valve until the striker strikes the striker again