ANS Xtreme Performance Auto Cocker Xtreme Flow Valve. The ANS Cocker Valve is compatible with all Autococker Paintball Guns. The valve operates between 225 and 275 PSI. The valve is easy to rebuild and will increase the gas flow to the marker. The ANS Cocker valve has been in production for over 10 years with no changes. The valve was designed perfect the first time and since then, ANS has decided to keep the same design. Throw one of these great low pressure ANS valves in your cocker and you will not be disappointed. This valve comes with the valve body, valve stem, valve spring and one spare valve seal.