New and improved V2 - 3 port design.  It was challanging to exceed the X7 valve, but with numerous prototypes this valve has surpassed the performance of the X7 4 port valve. This will fit all makers that currently have the tombstone as the air inlet supply. The valve body features ramped inlet and exhaust ports for improved flow, smaller front direct porting,  3rd top port and all of these combined will help increase velocity and efficiency of these markers. This will allow for reduced input pressures and reduced spring rates.