some ?
 

About the rear IRS double spring plates. What is the smaller bolt that only goes through the first spring plate for? Alignment?

I also noticed that the new irs conversion kits don't have a place to peen into the diagonal arm bolt (the ones that holds the front of the diagonal arm). There is a surface on the stock mounting bracket to peen over a piece of the bracket into the bolt head, as the head of the bolt has these little grooves cut into it. So I was hoping to see if loctite is needed instead.

Thanks
Rip