Yes, iron sites can be installed by silver solder. Right for your barrel? I don't know. Brownells.com takes questions like this and they are pretty sure to know. Of course, they also sell silver solder. Brazing, brass solder, might be better. Or you can clamp around the barrel. These were big on African rifles. Never did understand why they were so uncommon in US. Not sure about either brass or silver solder on stainless. But there are ways. Brownells stocks most of them. Then, of course, there are the sight companys. Lyman. Williams. Most have web sites and can advise you. Your concern is commendable. Now do the homework and see what your budget/tastes allow. luck.