A machinist friend made the adapter for me.
So, I can't make more.
I'll look for my drawings and post them for reference.
I know they are "napkin sketches" so I'll try to clean them up.

As for activation of the laser...
One side of the sight holds the batteries and the other side has the laser.
On the back of the battery side is a small push button.
I use the thumb of my off hand to push it.
You can set it to pulse also.
This makes it easier to see and doubles the battery life.