Is anyone - say especially Verslagen - willing to share information on how the roll pin is placed in the Verslavy mod?  When I first thought of fabbing one myself, I thought the plunger was solid but I now see that it is hollow and has the spring running all the way through it.    

1)  does the pin pass through the spring or is the spring compressed before it and stopped by it?

2)  is the back side of the plunger drilled through, too?  

3) is the pin held in permanently by spring tension or by loctite or by a spot weld?

Thank you,  

a Newb

Thanks a bunch