Ok, the pin is between the rings on the hammer.
I took a BS lower tube with the valve,hammer and mounting nut still in place and fully depressed the valve.Allowing the front ring on the hammer to just clear the access notch.LB bolt on top.

__________________
Things on my WTB list are:
Autococker threaded Nelson body
Assault Line "L" stock for Nelson or sheridan P series.
Send me a PM if you have any of these to sell.
My feedback