Re: installing ghost ring sights
The factory bead is screwed into a small hole. The factory "bead on pedestal" is silver soldered on. The aftermarket ghost ring sights are epoxied on, especially if they have tritium inserts. The heat from silver soldering would ruin the insert. When new, they came with epoxy, otherwise use any good bedding epoxy and put them right over the front sight bead, which helps lock it in place. Use a little 80 grit paper and rough the barrel right under the new sight, gives the epoxy a little more grab.