Version 3 EdGi SRS SAP Piston cup and o-ring.


Ensures a better seal and even more consistent shooting experiernce with the legendary EdGi SRS SAP piston.


Please note: The O-ring goes in the radial groove in the piston cup.


Please do not use a silicone based lubricant with the EdGi SAP piston - we recommend Comma High Performance bearing grease.  

EdGi V3 SRS Sap Piston cup and O-Ring