O & Y-Ring For APS piston / APS-2

For PDI APS Piston(HD/VC).
Normaly ,That piston is installed O ring,but use this Y ring,you'll find smooth pulling the bolt.
But Y ring is required a little trick to install the cylinder,so it's not for beginners.

How to put Y-ring
　　　
After cover the piston,see the top of the piston & check the Y-ring is set to the center.Next,push the piston into the Cylinder,then if you feel jam on the thread,use a BB lorder rod & punch the center of the piston step by step.If not good,please spray the silicon oil to Y-ring side.

「O & Y-Ring For APS piston / APS-2」 PRODUCT CODE:634511

For PDI APS Piston(HD/VC). Normaly ,That piston is installed O ring,but use this Y ring,you'll find smooth pulling the bolt. But Y ring is required a little trick to install the cylinder,so it's not for beginners. How to put Y-ring 　　　 After cover the piston,see the top of the piston & check the Y-ring is set to the center.Next,push the piston into the Cylinder,then if you feel jam on the thread,use a BB lorder rod & punch the center of the piston step by step.If not good,please spray the silicon oil to Y-ring side.
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