Here is the page link for the NECG front sights for the Rugers:

www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=9658&title=RUGER+HIGH+VISIBILITY+SIGHT

In all fairness to NECG, I may have damaged the sight when I was installing it. I wanted a tight fit but I may have left a bit too much material as I really had to tap her in with a small nylon hammer. I may have nicked the bead when I was removing it to install a new plunger.

The folks at NECG are replacing the sight for me and they said this scenario is a most rare occurance.

I use the .375" height with the NECG receiver peep and the .350" with the Williams FP rear sight.

I'm awaiting the arrival of an XS rear peep that fits the Ruger quarter rib and will report on my experience with that unit.

Regards.