OK, hi to all! Here's what I've discovered so far..... As you might suspect, the rivets are the easy part!!!!
... I have discovered that all were done with a large variance in position and tolerance... There is a variance in the distance from the edge of the receiver, and also a variance in distance between the holes on a linear measure?? So, what does this mean?? Well, if you are re-riveting an original sear safety back on it's original receiver, or re-riveting it to tighten it up on it's original receiver.. then all that is needed is a new rivet, as of now, nooooo problem!! ...
... BUT, if you want to reinstall a sear safety device from one receiver, onto a totally new application on another receiver.. you might encounter some issues... I'm thinking it's a crap shoot! maybe 50% interchangeability??... So, That's it... so far... more to come..BTW, the rivets turned out perfect... best to all, til...lat'r....GT